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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!
_________________________
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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#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.
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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
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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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2012 F150 - 5.0L Coyote, 4x4 w/elocker, on 35"s
2003 Mustang GT - Lowered on 18" Dodge Magnums. *SOLD*
2000 Crown Vic P71 (few mods) - *SOLD AFTER 8 YEARS*
"People sleep peaceably in their beds at night only because rough men stand ready to do violence on their behalf." - George Orwell.
"America is all about speed - hot, nasty badass speed." - Eleanor Roosevelt.

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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!!

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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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