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#1801945 - 06/30/09 01:45 PM Synthetic or Not Synthetic, that is the question.
Cavenerd Offline
n00b

Registered: 06/23/09
Posts: 33
Loc: California
Here's a off the wall question.

When you purchase a used car, is there a test to determinine whether it's currently using Synthetic Oil or not?


Cavenerd
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2000 CVPI (Detective), All Stock, Deep Wedgewood Blue.
Cavenerd

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#1801952 - 06/30/09 01:56 PM Re: Synthetic or Not Synthetic, that is the question. [Re: Cavenerd]
Rizzo Offline
J-MOD Master
Metroplectic

Registered: 03/06/04
Posts: 29215
Loc: Romulus,MI
Check the glovebox,map pockets and around the seats for old receipts.

But other than proof there isn't any test tube set-up, Unless you put it in the freezer and have a flow rate measuring device.
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#1801962 - 06/30/09 02:08 PM Re: Synthetic or Not Synthetic, that is the question. [Re: Rizzo]
Cavenerd Offline
n00b

Registered: 06/23/09
Posts: 33
Loc: California
Thanks Rizzo.

That's what I thought. I just thought I'd ask. It'd be nice to be able to tell.

My newly aquired '00 Detective P71 is in need of an oil change.

\:\)

Oh, is there a 'preferred' brand of Synthetic for these higher milage animals? I've used Castrol Syntec in the past with decent results and Mobil 1 with less than stellar results.

Thanks again!
Cavenerd
_________________________
2000 CVPI (Detective), All Stock, Deep Wedgewood Blue.
Cavenerd

"You are a fluke of the Universe. You have no right to be here. And whether you can hear it or not, the Universe is lauging behind your back!"

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#1801963 - 06/30/09 02:09 PM Re: Synthetic or Not Synthetic, that is the question. [Re: Cavenerd]
PantherMike Offline
Member

Registered: 09/22/05
Posts: 360
Loc: Arizona
Pennzoil Platinum, very hard to beat oil.
_________________________
2001 Crown Victoria P71- 116K miles, Fresh Black Paint, No mods for now.

1997 Lincoln Mark VIII- Sold.

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#1801965 - 06/30/09 02:12 PM Re: Synthetic or Not Synthetic, that is the question. [Re: PantherMike]
TM875 Offline
Over the Hill

Registered: 08/27/08
Posts: 1761
Loc: Elizabethtown PA
 Originally Posted By: PantherMike
Pennzoil Platinum, very hard to beat oil.


+1


Edit: And make sure to use Motorcraft, WIX, or Purolator PureOne filters.


Edited by TM875 (06/30/09 02:13 PM)
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#1801974 - 06/30/09 02:24 PM Re: Synthetic or Not Synthetic, that is the question. [Re: TM875]
KayTar Offline

Poobah

Registered: 05/13/09
Posts: 9426
Loc: Alberta, Canada
+1 to pennzoil Platinum

it's all I use.
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#1801982 - 06/30/09 02:36 PM Re: Synthetic or Not Synthetic, that is the question. [Re: KayTar]
Rizzo Offline
J-MOD Master
Metroplectic

Registered: 03/06/04
Posts: 29215
Loc: Romulus,MI
I would like to state that the opinions in this thread are only those of the people who wish to subject themselves to the endless oil debate.

This and Anti-seize on spark plugs never goes anywhere and nothing ever comes from it.

I am not giving my opinion and I am not dismissing those given either.
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#1802002 - 06/30/09 03:09 PM Re: Synthetic or Not Synthetic, that is the question. [Re: Rizzo]
Cavenerd Offline
n00b

Registered: 06/23/09
Posts: 33
Loc: California
Oh, I know. I'm just looking for input as to what others are using.

I don't want to get into the old 'Peanutbutter and Dill Pickle Sandwich' vs. 'Ham and Strawberry Jello Sandwich' debate.

\:D
Cavenerd
_________________________
2000 CVPI (Detective), All Stock, Deep Wedgewood Blue.
Cavenerd

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#1802009 - 06/30/09 03:19 PM Re: Synthetic or Not Synthetic, that is the question. [Re: Cavenerd]
Chevyguy Offline

Poobah

Registered: 01/05/04
Posts: 9449
Loc: Winchester Mass
 Originally Posted By: Cavenerd
Thanks Rizzo.

That's what I thought. I just thought I'd ask. It'd be nice to be able to tell.

My newly aquired '00 Detective P71 is in need of an oil change.

\:\)

Oh, is there a 'preferred' brand of Synthetic for these higher milage animals? I've used Castrol Syntec in the past with decent results and Mobil 1 with less than stellar results.

Thanks again!
Cavenerd


What "REsults" are you talking about \:\)
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#1802020 - 06/30/09 03:48 PM Re: Synthetic or Not Synthetic, that is the question. [Re: Chevyguy]
Danny_Boy Offline

Over the Hill

Registered: 12/11/03
Posts: 2777
Loc: Franklinville NY
Just use a good quality/name brand motor oil and filter,thats all....

I would shy away from anything that has the word "Value" on it ;\)

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#1802028 - 06/30/09 04:00 PM Re: Synthetic or Not Synthetic, that is the question. [Re: PantherMike]
Ciffer Offline
Over the Hill

Registered: 05/16/06
Posts: 4366
Loc: Witchataw KS
 Originally Posted By: PantherMike
Pennzoil Platinum, very hard to beat oil.


used to be hard to beat when it was Group V base oil, last i checked it was Group III.

Amsoil makes better oil.

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#1802049 - 06/30/09 04:29 PM Re: Synthetic or Not Synthetic, that is the question. [Re: Ciffer]
Crown Nick Offline
Over the Hill

Registered: 01/12/07
Posts: 3244
Loc: Houston, TX
How about a semi-synthetic? Motorcraft semi-synthetic, which is spec'd and used by Ford is available at Wal-Mart for very cheap. I pay 2.xx something a quart. They also carry the Motorcraft filter at Wal-Mart. Makes for an inexpensive oil change, not to metion it's OEM.
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#1802105 - 06/30/09 06:16 PM Re: Synthetic or Not Synthetic, that is the question. [Re: Crown Nick]
Cavenerd Offline
n00b

Registered: 06/23/09
Posts: 33
Loc: California
Well, currently I'm 'flushing' the oil. I do this with all used cars I buy. I do an oil change ( and boy did this thing need one ) then drive it for a week or so then change it again.

When a vehicle's oil is as nasty as this ones appeared to be, I find it beneficial to do this in order to clear most of the grungy-old oil out. It's this or drop the oil pan and flush it that way. This way's cheaper for me.

Cavenerd
_________________________
2000 CVPI (Detective), All Stock, Deep Wedgewood Blue.
Cavenerd

"You are a fluke of the Universe. You have no right to be here. And whether you can hear it or not, the Universe is lauging behind your back!"

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#1802110 - 06/30/09 06:28 PM Re: Synthetic or Not Synthetic, that is the question. [Re: Cavenerd]
Rizzo Offline
J-MOD Master
Metroplectic

Registered: 03/06/04
Posts: 29215
Loc: Romulus,MI
Do you know about AutoRX ?
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#1802112 - 06/30/09 06:29 PM Re: Synthetic or Not Synthetic, that is the question. [Re: Rizzo]
Cavenerd Offline
n00b

Registered: 06/23/09
Posts: 33
Loc: California
Nope, never heard of it.

Cavenerd
_________________________
2000 CVPI (Detective), All Stock, Deep Wedgewood Blue.
Cavenerd

"You are a fluke of the Universe. You have no right to be here. And whether you can hear it or not, the Universe is lauging behind your back!"

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#1802116 - 06/30/09 06:33 PM Re: Synthetic or Not Synthetic, that is the question. [Re: Cavenerd]
Rizzo Offline
J-MOD Master
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Registered: 03/06/04
Posts: 29215
Loc: Romulus,MI
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#1802124 - 06/30/09 06:45 PM Re: Synthetic or Not Synthetic, that is the question. [Re: Danny_Boy]
LTC_Dave Offline

Over the Hill

Registered: 06/26/09
Posts: 3979
Loc: Kansas
 Originally Posted By: Danny_Boy
Just use a good quality/name brand motor oil and filter,thats all....

I would shy away from anything that has the word "Value" on it ;\)

X2. And for the record I use either Valvoline or Royal Purple full synthetic oil.
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#1802129 - 06/30/09 06:53 PM Re: Synthetic or Not Synthetic, that is the question. [Re: LTC_Dave]
Cavenerd Offline
n00b

Registered: 06/23/09
Posts: 33
Loc: California
Ahhh... good stuff.

I'll definately look into it!

Thanks again Rizzo!

Cavenerd
_________________________
2000 CVPI (Detective), All Stock, Deep Wedgewood Blue.
Cavenerd

"You are a fluke of the Universe. You have no right to be here. And whether you can hear it or not, the Universe is lauging behind your back!"

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#1802145 - 06/30/09 07:10 PM Re: Synthetic or Not Synthetic, that is the question. [Re: Cavenerd]
IZ1111 Offline
Over the Hill

Registered: 07/19/08
Posts: 1234
Loc: Houston, TX
I've used Castrol and Mobil

I'll try Penzoil and see what all the hype is about.
_________________________

1992 Crown Victoria LX 150K AOD 3.08gears
-A/C delete (w/ condenser & accumulator), -CVPI Aluminum Driveshaft, -Cold Air Intake, -Electric Fan, -'96+ Intake System, -180� Thermostat, -NGK Iridium Spark Plugs, -FlowMaster 40 muffler, -UnderDrive Pulleys (excluding WP pulley), -Battery in Trunk



SOLD!!!!

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#1802156 - 06/30/09 07:21 PM Re: Synthetic or Not Synthetic, that is the question. [Re: IZ1111]
Rizzo Offline
J-MOD Master
Metroplectic

Registered: 03/06/04
Posts: 29215
Loc: Romulus,MI
 Originally Posted By: IZ1111
I've used Castrol and Mobil

I'll try Penzoil and see what all the hype is about.


How are you going to measure if it's hype or not ?
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#1802158 - 06/30/09 07:27 PM Re: Synthetic or Not Synthetic, that is the question. [Re: Rizzo]
IZ1111 Offline
Over the Hill

Registered: 07/19/08
Posts: 1234
Loc: Houston, TX
CAUSE I CAN DO THAT! lol

Yeah its the most promoted oil in TV commercials, plus it seems to be a favorite by memeber here.
_________________________

1992 Crown Victoria LX 150K AOD 3.08gears
-A/C delete (w/ condenser & accumulator), -CVPI Aluminum Driveshaft, -Cold Air Intake, -Electric Fan, -'96+ Intake System, -180� Thermostat, -NGK Iridium Spark Plugs, -FlowMaster 40 muffler, -UnderDrive Pulleys (excluding WP pulley), -Battery in Trunk



SOLD!!!!

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#1802160 - 06/30/09 07:29 PM Re: Synthetic or Not Synthetic, that is the question. [Re: IZ1111]
Rizzo Offline
J-MOD Master
Metroplectic

Registered: 03/06/04
Posts: 29215
Loc: Romulus,MI
So you're gonna put it in there and if nothing bad happens then you will assume it's a good oil ?
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#1802170 - 06/30/09 07:40 PM Re: Synthetic or Not Synthetic, that is the question. [Re: Rizzo]
05cvpi Offline
Member

Registered: 09/23/08
Posts: 312
Valvoline full synthetic oil for me.
_________________________

2005 P71
ex. Greenfieid Wisconsin Detective unit #104

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#1802173 - 06/30/09 07:42 PM Re: Synthetic or Not Synthetic, that is the question. [Re: Rizzo]
IZ1111 Offline
Over the Hill

Registered: 07/19/08
Posts: 1234
Loc: Houston, TX
 Originally Posted By: AKA_Rizzo
So you're gonna put it in there and if nothing bad happens then you will assume it's a good oil ?




Do I really have to reply...
_________________________

1992 Crown Victoria LX 150K AOD 3.08gears
-A/C delete (w/ condenser & accumulator), -CVPI Aluminum Driveshaft, -Cold Air Intake, -Electric Fan, -'96+ Intake System, -180� Thermostat, -NGK Iridium Spark Plugs, -FlowMaster 40 muffler, -UnderDrive Pulleys (excluding WP pulley), -Battery in Trunk



SOLD!!!!

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#1802320 - 06/30/09 11:23 PM Re: Synthetic or Not Synthetic, that is the question. [Re: IZ1111]
BlueFusion Offline
Over the Hill

Registered: 05/24/09
Posts: 2819
Loc: /root
Mobil 1 5W-30 for me. Has been happy in the 90+ degree, humid weather in the summer and the -10s in the winter well.

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#1802347 - 06/30/09 11:43 PM Re: Synthetic or Not Synthetic, that is the question. [Re: IZ1111]
Rizzo Offline
J-MOD Master
Metroplectic

Registered: 03/06/04
Posts: 29215
Loc: Romulus,MI
 Originally Posted By: IZ1111
 Originally Posted By: AKA_Rizzo
So you're gonna put it in there and if nothing bad happens then you will assume it's a good oil ?




Do I really have to reply...


If you are not capable of explaining your strategy or technique then I don't want you to hurt yourself.

Sorry for making you look stupid.
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#1802419 - 07/01/09 01:23 AM Re: Synthetic or Not Synthetic, that is the question. [Re: Crown Nick]
CriticalAcclaim0 Offline
Rookie

Registered: 03/03/09
Posts: 50
Loc: Antelope Valley, California
 Originally Posted By: Crown Nick
How about a semi-synthetic? Motorcraft semi-synthetic, which is spec'd and used by Ford is available at Wal-Mart for very cheap. I pay 2.xx something a quart. They also carry the Motorcraft filter at Wal-Mart. Makes for an inexpensive oil change, not to metion it's OEM.



I've always used the Motorcraft Semi-Synthetic oil and Motorcraft oil filters for all of my Ford vehicles. If you took it to the dealer.. they'd be using the same stuff. Why not use stuff that Ford designed for the vehicles they build??

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#1803239 - 07/02/09 01:47 AM Re: Synthetic or Not Synthetic, that is the question. [Re: CriticalAcclaim0]
Kinger87 Offline

Poobah

Registered: 12/15/02
Posts: 7624
Loc: Gladstone MI
If I run synthetic I run amsoil. One of the main reasons is the success i've had with it on 2 strokes, the engines are so clean and nice when ran with this over the life of the motor compared with standard oil.

now this by no means does this state or prove the 4 stroke amsoil is good or not, i guess i figured if the burned oil is good the lubrication only kind must be pretty good too..lol
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#1803286 - 07/02/09 06:28 AM Re: Synthetic or Not Synthetic, that is the question. [Re: KayTar]
RockBiter Offline
Member

Registered: 02/22/09
Posts: 176
Loc: St. Louis MO
I use regular oil(I like valvoline,but whatever your pref is) and Lucas engine treatment (or "engine snot" as some call it) I have 149,800 miles on my 97pi. I went 5,000 miles and didn't burn any at all. Oil came out looking new when I changed it.
_________________________
2006 Crown Vic P71 116,800 miles. Ownership: West Virginia,Dealer,Me
3.55 Trac Lock. K&N Filter in stock air box
SOLD 1997 Crown Vic P71 175,000 miles
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#1803288 - 07/02/09 06:30 AM Re: Synthetic or Not Synthetic, that is the question. [Re: LTC_Dave]
RockBiter Offline
Member

Registered: 02/22/09
Posts: 176
Loc: St. Louis MO
 Originally Posted By: Merky_Maquis
 Originally Posted By: Danny_Boy
Just use a good quality/name brand motor oil and filter,thats all....

I would shy away from anything that has the word "Value" on it ;\)

X2. And for the record I use either Valvoline or Royal Purple full synthetic oil.

That's thinking with yer dipstick,Jimmy!
_________________________
2006 Crown Vic P71 116,800 miles. Ownership: West Virginia,Dealer,Me
3.55 Trac Lock. K&N Filter in stock air box
SOLD 1997 Crown Vic P71 175,000 miles
"Does this washcloth smell like chloroform to you?"
"I replaced my liver with a K&N filter, that way I get better flow."


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#1803302 - 07/02/09 07:36 AM Re: Synthetic or Not Synthetic, that is the question. [Re: RockBiter]
White Falcon LS Offline


Posting Addict

Registered: 01/01/02
Posts: 19113
Loc: SoCal
Motorcraft is a very decent oil at a very decent price. It's supplied by ConocoPhillips, who also supply brands like Kendall, using Korean base stock oils. Brilliant oil for 5,000 mile drain intervals.

If you're going synthetic, Pennzoil Platinum is a very decent oil as well. Albeit, a Group III, it performs as well as Group IV oils and comes with a more reasonable price tag. I would have no second thoughts about running it for at least 10,000 miles.

Then you've got the likes of Amsoil, Mobil 1, etc. I know Amsoil is mostly Group IV, but so is Mobil 1 - which also contains some Group III and Group V from what I've read.

Ultimately, it comes down to how much you're willing to spend and what oil change intervals you're looking to carry out.

Speaking of which, the FL-820S is the best filter you can use for this application!
_________________________
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#1803441 - 07/02/09 12:11 PM Re: Synthetic or Not Synthetic, that is the question. [Re: White Falcon LS]
Rizzo Offline
J-MOD Master
Metroplectic

Registered: 03/06/04
Posts: 29215
Loc: Romulus,MI
Thank you.
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#1803453 - 07/02/09 12:31 PM Re: Synthetic or Not Synthetic, that is the question. [Re: Rizzo]
chazmo67 Offline

Member

Registered: 09/06/02
Posts: 306
Loc: North Hampton, NH
I use Amsoil with the Amsoil oil filter. Good for 25,000 miles or one year. For my money - it's the best deal going. Almost through my second year with no problems
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#1803455 - 07/02/09 12:33 PM Re: Synthetic or Not Synthetic, that is the question. [Re: chazmo67]
Rizzo Offline
J-MOD Master
Metroplectic

Registered: 03/06/04
Posts: 29215
Loc: Romulus,MI
 Originally Posted By: chazmo67
I use Amsoil with the Amsoil oil filter. Good for 25,000 miles or one year. For my money - it's the best deal going. Almost through my second year with no problems


Have you sent any in for an analysis ?

I would be interested in the results. Somewhere on this board is a post from a guy who ran Amsoil for 25K and sent it in for analysis, Turned out pretty good.
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#1803463 - 07/02/09 12:42 PM Re: Synthetic or Not Synthetic, that is the question. [Re: Rizzo]
Crown Nick Offline
Over the Hill

Registered: 01/12/07
Posts: 3244
Loc: Houston, TX
25k intervals???

I don't care how good the oil is, that just wouldn't sit well with me.
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#1803470 - 07/02/09 01:08 PM Re: Synthetic or Not Synthetic, that is the question. [Re: Crown Nick]
Rizzo Offline
J-MOD Master
Metroplectic

Registered: 03/06/04
Posts: 29215
Loc: Romulus,MI
His analysis stood up to the claim. His aluminum,iron,steel and coolant #'s were WAY down and close to the virgin oil from the same batch he sent in.

IIRC.
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#1803474 - 07/02/09 01:16 PM Re: Synthetic or Not Synthetic, that is the question. [Re: White Falcon LS]
Cavenerd Offline
n00b

Registered: 06/23/09
Posts: 33
Loc: California
 Originally Posted By: White Falcon LS
Motorcraft is a very decent oil at a very decent price. It's supplied by ConocoPhillips, who also supply brands like Kendall, using Korean base stock oils. Brilliant oil for 5,000 mile drain intervals.

If you're going synthetic, Pennzoil Platinum is a very decent oil as well. Albeit, a Group III, it performs as well as Group IV oils and comes with a more reasonable price tag. I would have no second thoughts about running it for at least 10,000 miles.

Then you've got the likes of Amsoil, Mobil 1, etc. I know Amsoil is mostly Group IV, but so is Mobil 1 - which also contains some Group III and Group V from what I've read.

Ultimately, it comes down to how much you're willing to spend and what oil change intervals you're looking to carry out.

Speaking of which, the FL-820S is the best filter you can use for this application!



Motorcraft makes excellent stuff but I've been using all K&N filters for a while now, oil and air, and have some 'stock' of both so I'll likely keep using them.

Thanks to everyone for their input on this topic. It's been most informative!

Cavenerd
_________________________
2000 CVPI (Detective), All Stock, Deep Wedgewood Blue.
Cavenerd

"You are a fluke of the Universe. You have no right to be here. And whether you can hear it or not, the Universe is lauging behind your back!"

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#1803495 - 07/02/09 01:43 PM Re: Synthetic or Not Synthetic, that is the question. [Re: Cavenerd]
SCHALLZ Offline
Poobah

Registered: 07/02/09
Posts: 5439
Loc: La Crosse WI, USA
i have used valvo full syn on my 02 merc grand marq. since i bought it then i switched to full syn max life at 75k i also run additives in there also to keep compression as high as possiable and fast heat up time
_________________________
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#1803514 - 07/02/09 02:24 PM Re: Synthetic or Not Synthetic, that is the question. [Re: SCHALLZ]
vicman7 Offline
Climber

Registered: 09/12/08
Posts: 536
Loc: MN
Royal Purple fully synthetic and now I hear Royal Purple has come out with their own line of oil filters so I might pick one of those next time and run it as well. However I have been running either a K&N Gold filter or a Mobil 1 depending on availability. I have also run Mobil 1 fully synthetic.

I recommend them both, with Royal Purple costing more obviously.
_________________________
Black 2003 CVPI w/50k miles and too many mods to fit in my sig!

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#1803581 - 07/02/09 04:05 PM Re: Synthetic or Not Synthetic, that is the question. [Re: vicman7]
98P73_IRAQ Offline
Over the Hill

Registered: 04/26/08
Posts: 2945
Loc: iraq-baghdad-hell's street
i just switched to LIQUI MOLY high tech synthetic 5w30 + 820S filter for my 1992
i feel the engine more smooth and little better MPG.
_________________________
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1992 crownvic LX P74 (ex US DOD unit) SOLD 2009
1998 crownvic P73 (came from canada) SOLD 2014
1990 oldsmobile cutlass cierra 3.1L FE3 WORK VEHICLE
2007 toyota yaris 1.3L wife vehicle SOLD
2011 ford edge limited 3.5L AWD flooded (lifetime project)
2012 Ford Focus 2.0L. Exciting transmission technology.


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#1803942 - 07/03/09 02:44 AM Re: Synthetic or Not Synthetic, that is the question. [Re: RockBiter]
PoliceInterceptr Offline

Poobah

Registered: 07/24/08
Posts: 5401
Loc: Miami, FL
I had 74k miles on my last oil change and used Quaker State high mileage with a Motorcraft filter (about $17 for both I believe at Walmart) and got great results. Motorcraft is what it had before and is what is recommended in the manual. And by great results I mean smoother running and great drive feel.
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#1804228 - 07/03/09 03:19 PM Re: Synthetic or Not Synthetic, that is the question. [Re: Rizzo]
PantherMike Offline
Member

Registered: 09/22/05
Posts: 360
Loc: Arizona
 Originally Posted By: AKA_Rizzo
Do you know about AutoRX ?


I've used this on many vehicles, great stuff.
_________________________
2001 Crown Victoria P71- 116K miles, Fresh Black Paint, No mods for now.

1997 Lincoln Mark VIII- Sold.

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#1804329 - 07/03/09 05:59 PM Re: Synthetic or Not Synthetic, that is the question. [Re: PantherMike]
White Falcon LS Offline


Posting Addict

Registered: 01/01/02
Posts: 19113
Loc: SoCal
Even better with the maintenance dose. \:\)
_________________________
Lucifer: '01 Grand Marquis GS Convenience
Tuned By Marty @ Mo's Speed Shop

In Memory of Ned Nuss, Rick Richardson and Matt (2vmodular)

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#1804689 - 07/04/09 06:38 AM Re: Synthetic or Not Synthetic, that is the question. [Re: White Falcon LS]
RockBiter Offline
Member

Registered: 02/22/09
Posts: 176
Loc: St. Louis MO
Run a mix of 1/2 JB Weld and 1/2 oil. That stops leaks better than anything else on the market! Sure,you might loose a bit of oil pressure,but that happens with all high mileage engines. LOL
_________________________
2006 Crown Vic P71 116,800 miles. Ownership: West Virginia,Dealer,Me
3.55 Trac Lock. K&N Filter in stock air box
SOLD 1997 Crown Vic P71 175,000 miles
"Does this washcloth smell like chloroform to you?"
"I replaced my liver with a K&N filter, that way I get better flow."


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#1804747 - 07/04/09 10:03 AM Re: Synthetic or Not Synthetic, that is the question. [Re: RockBiter]
Chevyguy Offline

Poobah

Registered: 01/05/04
Posts: 9449
Loc: Winchester Mass
I like the jugs of Synthetic from Wally Mart.

I used to get Mobil 1 5W 30 till the price went up. Last few times I got Valvoline Super syn as it was $21 for 5 quarts. Plus a FL820S for $3.64 or so.

This way I can go an easy 7K miles without worries, and I can afford to change it. I figure my cost to be about equal wither way.

I would have to go 3-4 K on Motorcraft 5W30 to get similar protection. Plus if i go to 8K or so no big sweat with the Syn but going over 5K on Syn blend/Dyno is more of a risk.

Sure "true" group IV is better oil, and the Stories of Amsoil 20K changes are interesting. Not sure I could stomach that even with used oil analysis. You still have to change the filter a few times and do a lube service and inspection so that takes 80% of the time of the oil change so you would save much time by the extended drain interval. I would worry about fuel buildup over time, your last drain interval was good but no guarantee that you will not build up fuel etc over the next 20 K miles.

I am sure that with a long enough drain interval the cost would at least equal the other two methods

Motorcraft Syn blend 3-4K interval

group III syn 7 - 8 K interval

Group IV Syn 15 - 20 K interval + 1 - 2 oil filter + 1 quart changes.



Upkeep of a vehicle is a matter of compromise and cost+Time /benefit.
_________________________
2004 MarauderM79 155K miles Jmod!! Rockin Stock tune Daily, Muscle Merc tune for track 14.85 @95.63
2004 Crown Vic LX SOLD!!

New Daily 2016 Dodge Charger R/T Road and track, purchase with 16K now 23K after 3 months. 5.7 Hemi, 8 speed ZF trans 3.06 open rear 13.98 @ 99.2 mph 4740 lbs with driver!!

R.I.P Photobucket 10 years of hosting down the drain

Project car 74 Chevy Laguna type S-3, # match 400 SBC

Previous rides
93 P-71 2001 P-73, 94 TC Exec, 96 TC Signature, 04 LX

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#1804862 - 07/04/09 02:41 PM Re: Synthetic or Not Synthetic, that is the question. [Re: Chevyguy]
White Falcon LS Offline


Posting Addict

Registered: 01/01/02
Posts: 19113
Loc: SoCal
To be honest, OCI is also depends on you as the "operator". If you idle a lot, for instance, that would reduce your OCI. Fuel dilution isn't exactly a good thing for the oil or the engine.

Personally, I've run Group II HDEO oils for 10,000 km (6,250 mile) OCIs. The minimum I would consider running a Group III synthetic is 15/16,000 km (10,000 miles). OTOH, I'm running Mobil 1 0W-40 for 20,000 km (12,500 miles).

Having said that, it also depends on the oil itself...VI, TBN and maybe HTHS. Motorcraft Synthetic Blend, for instance, has a virgin TBN of 6.5. HDEOs (or dual-rated oils) generally have a TBN of 10 or higher...bear in mind TBN is reduced quite a bit once the oil is put into service. UOA is a good investment.

I'm personally more interested in ACEA certification, rather than the API, when choosing an oil. MB Sheet 229.3/5/5.1 or BMW LL-01/04 certification also a decent benchmark.

Having said that, when helping out friends or relatives with their Panther's oil changes, my choice is Fuchs Titan GT1 5W-30 for 15,000 km. It has no API or ILSAC certification, but is ACEA A3/B4 and C3, MB 229.31, BMW LL-04 approved - and these engines love it. For those willing to spend the extra, it's Mobil 1 0W-40 (which quickly shears down to a 30 weight).
_________________________
Lucifer: '01 Grand Marquis GS Convenience
Tuned By Marty @ Mo's Speed Shop

In Memory of Ned Nuss, Rick Richardson and Matt (2vmodular)

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#1804970 - 07/04/09 08:35 PM Re: Synthetic or Not Synthetic, that is the question. [Re: White Falcon LS]
RockBiter Offline
Member

Registered: 02/22/09
Posts: 176
Loc: St. Louis MO
Roy L Fuchs?
_________________________
2006 Crown Vic P71 116,800 miles. Ownership: West Virginia,Dealer,Me
3.55 Trac Lock. K&N Filter in stock air box
SOLD 1997 Crown Vic P71 175,000 miles
"Does this washcloth smell like chloroform to you?"
"I replaced my liver with a K&N filter, that way I get better flow."


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#1805081 - 07/05/09 12:38 AM Re: Synthetic or Not Synthetic, that is the question. [Re: BlueFusion]
Timmn1 Offline
Over the Hill

Registered: 09/21/07
Posts: 1919
Loc: Near I-80 & I-57
I buy the Motorcraft Oil, simply because I can get it for 5 cents more a quart than the store brand.
_________________________
1997 Grand Marquis GS - Died
Now have a 2003 Grand Marquis LS

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#1805106 - 07/05/09 01:25 AM Re: Synthetic or Not Synthetic, that is the question. [Re: Cavenerd]
Squeek Offline
Climber

Registered: 10/28/03
Posts: 525
Loc: Behind you
 Originally Posted By: Cavenerd
When you purchase a used car, is there a test to determinine whether it's currently using Synthetic Oil or not?

If you really wanted to know, you could take a sample of the oil and submit it to a chromatography lab. This is probably more hassle and certainly more cost than it's worth.

 Originally Posted By: Ciffer
used to be hard to beat when it was Group V base oil, last i checked it was Group III.

Pennzoil Platinum has had a Group III basestock since day one. Group V basestocks are not typical in automotive use.

 Originally Posted By: BeforeIForget761
I've always used the Motorcraft Semi-Synthetic oil and Motorcraft oil filters for all of my Ford vehicles. If you took it to the dealer.. they'd be using the same stuff. Why not use stuff that Ford designed for the vehicles they build??

ConocoPhillips designed the oil, and Purolator designed the FL-820s. I say why buy synthetic blend when it's only between 20-35% synthetic, and a Group III to boot?

 Originally Posted By: White Falcon LS
Speaking of which, the FL-820S is the best filter you can use for this application!

Mortal Kombat is a very GOOD game; however, I think Donkey Kong is the best video game ever.

AMSOIL EaO11 - higher efficiency, capacity, and flow rate; rated for 25,000 miles or a year (small print: when used in conjunction with AMSOIL synthetic motor oils.)

 Originally Posted By: Crown Nick
25k intervals???

Yes.

 Quote:
I don't care how good the oil is, that just wouldn't sit well with me.

Chew on this: The last commercial jetliner you flew on hadn't had an oil change since coming out of the factory. Just the occasional top-up. [Source: History Channel - Modern Marvels: Lube Job]

 Originally Posted By: Chevyguy
Sure "true" group IV is better oil, and the Stories of Amsoil 20K changes are interesting. Not sure I could stomach that even with used oil analysis. You still have to change the filter a few times and do a lube service and inspection so that takes 80% of the time of the oil change so you would[n't?] save much time by the extended drain interval. I would worry about fuel buildup over time, your last drain interval was good but no guarantee that you will not build up fuel etc over the next 20 K miles.

As I stated above, the AMSOIL EaO11 is good for 25,000 miles or one year, whichever comes first. Numerous UOAs support that this line of filters effectively removes contaminants during extended drain intervals.

I treat the ball joints and pitman arm every 6 months or so with AMSOIL GHD Heavy-Duty moly grease, and after less than a pump or two there is already grease coming out of the boot. That means the stuff stays put, even after the temperature climbs above 80F.

And as for fuel dilution being a worry, every time I've done a UOA to comfort a customer who is using AMSOIL with extended drain intervals, the reports have shown the exact same number in the "Fuel Dilution" category -- <1%.

I save plenty of time with extended drain intervals. Inspection takes 10-15 minutes. OTOH if you don't have the discipline to do an occasional inspection, extended drains may not be for you.
_________________________
'93 P71 | Diseased 281 | 4R70W | Rusty as a cow's ass | AMSOIL EaA49 Air Filter | AMSOIL Lubes

Recently retired: AMSOIL TS49 Air Filter (goodbye oiled filters!)

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#1805182 - 07/05/09 07:58 AM Re: Synthetic or Not Synthetic, that is the question. [Re: Squeek]
White Falcon LS Offline


Posting Addict

Registered: 01/01/02
Posts: 19113
Loc: SoCal
 Originally Posted By: Squeek
Pennzoil Platinum has had a Group III basestock since day one. Group V basestocks are not typical in automotive use.


Some Platinum viscosities, such as 5W-20 and 5W-40, have some POA in it. Your Platinum is basically Shell Helix Ultra. Mobil 1 also uses some Group V in their products, mixed in with Group III/IV.

 Originally Posted By: Squeek
Mortal Kombat is a very GOOD game; however, I think Donkey Kong is the best video game ever.

AMSOIL EaO11 - higher efficiency, capacity, and flow rate; rated for 25,000 miles or a year (small print: when used in conjunction with AMSOIL synthetic motor oils.)


Amsoil EA filters are not exactly off the shelf filters, which is what I was referring to. And the catch is, it has to be used with Amsoil oils to last 25,000 miles....which you already pointed out.
_________________________
Lucifer: '01 Grand Marquis GS Convenience
Tuned By Marty @ Mo's Speed Shop

In Memory of Ned Nuss, Rick Richardson and Matt (2vmodular)

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#1805183 - 07/05/09 08:05 AM Re: Synthetic or Not Synthetic, that is the question. [Re: RockBiter]
White Falcon LS Offline


Posting Addict

Registered: 01/01/02
Posts: 19113
Loc: SoCal
 Originally Posted By: RockBiter
Roy L Fuchs?


German oil company, supplying factory fill lubricants to Mercedes-Benz. \:\)
_________________________
Lucifer: '01 Grand Marquis GS Convenience
Tuned By Marty @ Mo's Speed Shop

In Memory of Ned Nuss, Rick Richardson and Matt (2vmodular)

Top
#1805837 - 07/06/09 04:44 AM Re: Synthetic or Not Synthetic, that is the question. [Re: White Falcon LS]
RockBiter Offline
Member

Registered: 02/22/09
Posts: 176
Loc: St. Louis MO
 Originally Posted By: White Falcon LS
 Originally Posted By: RockBiter
Roy L Fuchs?


German oil company, supplying factory fill lubricants to Mercedes-Benz. \:\)

Sorry, I had to throw the "Used Cars" movie reference in there.
_________________________
2006 Crown Vic P71 116,800 miles. Ownership: West Virginia,Dealer,Me
3.55 Trac Lock. K&N Filter in stock air box
SOLD 1997 Crown Vic P71 175,000 miles
"Does this washcloth smell like chloroform to you?"
"I replaced my liver with a K&N filter, that way I get better flow."


Top
#1805906 - 07/06/09 09:21 AM Re: Synthetic or Not Synthetic, that is the question. [Re: RockBiter]
Jai Offline
Member

Registered: 04/20/09
Posts: 198
Loc: Texas
I did use Mobil 1 for a long time, then tried Royal Purple when it first came out on the market. I've also used Redline ( very expensive ) and many other synthetics. Every car/truck is going to react different, its just mostly preference. You can take a sample and have it sent in, but unless you disassemble the engine after x amount of miles with one brand, then do it again with another brand, you'll never see what the inside looks like and see the wear patterns. I use Asmoil myself for my 06 CV, simply b/c I feel comfortable with it, not b/c of the " extended interval times ". I still change my oil on a regular basis, plus Amsoil is one of the few right now that carries a fully synthetic 5w20. I use amsoil in all my vehicles, in the engine, trans and diff. Whatever feels comfortable and gives you piece of mind is what you need to go with. Jaguar has been claiming 10k services for quite some time now, they dont use fully synthetic oil, and there are people who wait 10k miles to change the oil. Then there are those who choose to be smart, and keep it changed on even more regular basis. If you're using Mobil 1, or Valvoline, or even Castrol, I seriously dont think you're going to have engine failure b/c of the oil you chose to use, as long as you keep it changed. Point being, pick one that suits your driving habits, keep it changed on a regular basis, and be done.


Edited by Jai (07/06/09 09:23 AM)

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