Make payments with PayPal - it's fast, free and secure! registry | CVN on Facebook | tech | news | email login Make payments with PayPal - it's fast, free and secure!

Welcome to CVN - Your Panther platform headquarters!

Custom Search

Page 2 of 3 < 1 2 3 >
Topic Options
#289853 - 11/12/03 09:33 PM Re: Carbon Build-Up
uwsacf Offline
Over the Hill

Registered: 06/01/03
Posts: 3557
Loc: Orlando, Florida
btw - the detergents in the gas is what CAUSES soft carbon build up...

Techron will keep carbon from forming - but it will NOT remove it.
"I prefer the tumult of liberty to the quiet of servitude."

Thomas Jefferson to James Madison, 1787

2007 BBB MSRT8
2003 BBB Crown Vic Sport LX
1996 BBB Impala SS
1972 Chrysler Newport

#289854 - 11/12/03 09:56 PM Re: Carbon Build-Up
ritcheyd Offline

Over the Hill

Registered: 06/23/01
Posts: 3473
Loc: West "By God" Virginia
UWSACF_ You are the man! I gotta check that machine out. I have done everything for pinging on my 98, still has a little with 89 octane, and a little is too much for me.

2013 F150 XLT
2010 Grand Marquis
1971 Kaiser Jeep 2 1/2 ton

#289855 - 11/12/03 10:42 PM Re: Carbon Build-Up
chipdog4 Offline
Over the Hill

Registered: 02/04/03
Posts: 3089
Loc: SouthWest Indiana
Lucas is the best stuff out there next to Sea Foam. Sea Foam is sucked through the PCV Valve and then you need to turn the enigne off for 10 minutes, then you start it and run away and look at all the smoke from your car.

Water will work, but you need to get a spray bottle and spray a little through the throttle body. Too much and you'll Hydro Lock the beast.

99 LSE clone

#289856 - 11/13/03 09:12 AM Re: Carbon Build-Up
bugtussle Offline

Registered: 09/21/03
Posts: 212
Ive been using Duralt for years and this stuff works. If you run it in two tanks back to back your carbon will be gone. I usually run one treated tank through just before every other oil change.
Sig removed. Read the rules.

#289857 - 11/13/03 11:07 AM Re: Carbon Build-Up
metroplex Offline

Registered: 11/13/00
Posts: 49827
Loc: Motor City, USA
I found I get bad gas mileage and performance using 86, 87, and 89 octane fuel in the T-bird, E-250, and the Crown Vic.

Using 93+ octane - I get the best gas mileage. Explain the anti-knock rating all you want but 3 different engines seem to like higher octane fuel better than low octane stuff.

My Vic gets the best gas mileage using Sunoco Ultra 94 - no doubt about it. Based on what a lot of "experts" say, I would be getting the worst gas mileage with 94 octane fuel because it's highly resistive to knocking and wouldn't burn up properly, etc... but truth is, I can score 22+ mpg on the highway in my Vic w/ the 94 octane (3.55s, 2000 HPPs - werent known for the best gas mileage at all). With 93 octane and anything below that, 20-21 is the best I could do - IF THAT. 18-19 mpg was more common.

In the city, 10-11 mpg was commonplace for EASY going driving w/ 87-93 octane. 11-12 mpg is what I get with aggressive city driving (practicing launching to 40 mph at each stoplight every chance I can get, etc...) and 12-13 for easy going driving all with 94 octane fuel.

I notice the same thing with my T-bird using 87-89 octane fuel (BP, Amoco, Shell, you name it - same results) but 93 octane gives the best gas mileage.

As for carbon build-up... the T-bird DID have a problem with pinging but checking the ignition timing (and re-adjusting) as well as using Chevron Techron did the trick. The intake ports on the heads were all black but there wasn't carbon build-up (in the manner where you could grab out deposits). The tailpipes were all blackened with soot... and the cats were the originals (23+ years old) but I passed NJ emissions with flying colors. CO% was ultra ultra low and the NOx levels were obviously higher than a brand new EFI car, but they were well below the max spec for my car.
These aren't the droids you're looking for!

#289858 - 11/13/03 11:08 AM Re: Carbon Build-Up
Buck268 Offline

Grand Poobah

Registered: 02/27/02
Posts: 12132
Loc: Grand Rapids, MI
If I had to guess I would say its due to the purity of the gas or the additives, not the octane rating. But like I said, thats just a guess...
Dead: 1994 Crown Vic LX/HPP... over 190,000 miles when she got totalled frown
Gone: 1996 Mustang GT 5spd, drop top, Bassani OR X-pipe, Dynomax Ultraflows, PI Cams, K&N FIPK, C&L Elbow and 75mm TB, PIAA 1700X...
Dead: 2012 Mustang V6 Performance Package, Kona Blue with MagnaFlow "Street" catback. KIA August 2012 frown

#289859 - 11/13/03 11:25 AM Re: Carbon Build-Up
nafig Offline

Registered: 06/07/03
Posts: 477
Loc: Austin, Texas (and Dallas, Tex...
B-12 Chemtool <3
1)The "new" 2001 p74: Silver Frost Metallic 150k; new lights and tint; full exhaust, intake and computer to come!
2)1996 p74 (p71 convert): Wedgewood Blue 250k; used up but still going
1968 Mustang Coupe: I6, Factor Specs/Original Color

oye como va

#289860 - 11/13/03 12:58 PM Re: Carbon Build-Up
p71towny Offline
Over the Hill

Registered: 02/14/03
Posts: 1751
Loc: Ft. Wayne IN
I just let my engine warm up really good and then sprayed the water in the TB while reving it. I then used a vaccuum tool and hooked it up to my egr and opened it while doing the same thing. Idle seemed smoother but it could be in my head.
1995 Town Car, flowmaster 50's, gutted cats, gutted evap system, cold air tube, MMairbox & 80mm maf, K&N air filter, DR chip, 180 thermostat, 22pp plugs, Steeda underdrive pulleys w/gatorback belt, transgo shift kit, cross-drilled rotors w/performance friction pads, addco swaybars front and rear, poly bushings, edelbrock IAS shocks all around, deleted mechanical fan, Kenwood MP4028 w/kenwood 6x9's and 6x8's and more to come

1982 Crown Vic LTD 2dr No air pump or cats, cragar ss's, dual exhaust, tach, volt, oil, temp gauges.

#289861 - 11/13/03 01:39 PM Re: Carbon Build-Up
96VicNY Offline

Registered: 02/20/02
Posts: 130
My buddy had this done by the ford dealer on his wifes '98 Vic, he swears by it.

He says his mileage has gone up and car is a much "faster" off the line and overall.

I've been considering this since I drove his wife's car, it's real smooth.
1996 PI
Daily Driver
Bilstein Shocks
Previously K-9 car

#289862 - 11/13/03 01:59 PM Re: Carbon Build-Up
Barongrey Offline
Over the Hill

Registered: 02/05/02
Posts: 1690
Us old farts just get on the freeway and let 'er rip. You'd be amazed to see how much crud gets blown out the exhaust.

I've used a water setup that was permanently installed on a truck I had...but that engine kept blowing the heads off, and it may have been due to the water injection.

I'd agree with some of the suggestions above, using one of the additives to help clean up your carbon (if you really have any.) Remember, it's nearly impossible to see the 'inside' of a cylinder through the plug hole. About all you could see would be the top of a piston, and even then you couldn't tell how thick the carbon was.

You might ask around and see if anyone has a borescope you could borrow. That would let you inspect the inside of your cylinders/pistons/valves without tearing the engine down.

Good luck!
1997 P71 with 73K miles - SOLD

Meddle Not In The Affairs Of Dragons, For Thou Art Crunchy And Taste Good With Ketchup!

#289863 - 11/13/03 03:02 PM Re: Carbon Build-Up
Opfor2 Offline

Registered: 10/15/02
Posts: 50
I've also heared that ATF fluid will remove carbon build-up. Anyone else hear of this working ?

1993, P71 Police intercepter
X-CHP West Valley commanders vehicle
Accel "Kool Blue" hi-performance air filter
5% tint all the way around
190.000+ miles
Vhf Motorola Spectra radio w/ DES-XL


A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed.

U.S. Bill of Rights, Amendment II, September 25, 1789

#289864 - 11/13/03 03:46 PM Re: Carbon Build-Up
Ronman® Offline

Registered: 01/23/01
Posts: 30473
Loc: MCO
Yes, but you have to spray it VERY lightly into the throttle body. You don't want to just pour it in. A spray bottle would work.
Log off life.

#289865 - 11/13/03 04:46 PM Re: Carbon Build-Up
hawkszone Offline

Registered: 10/15/02
Posts: 181
Loc: Atlanta, GA
Thanks for all the suggestions.

For right now I am going to use the Lucas treatment every other fill-up for about 3-4 tanks. At the same I am going to take this diagnoses as permission to go WOT a little more often

In the near future I am going to try and find a shop with a Motovac that knows what they are doing. After reading about it on the SS forums and elsewhere it looks legit enough to try. I may also give the water process a go.

'99 Grand Marquis LS w/ HPP+ABS/TC
35% Tint All Around
Flowmaster Delta Flow 50's
Genuine Marauder Tips
CV Sport 17" Wheels
Pirelli P-ZeroNero's

#289866 - 11/13/03 09:29 PM Re: Carbon Build-Up
Squeek Offline

Registered: 10/28/03
Posts: 525
Loc: Behind you
hawkzone, listen to me very carefully. There is one product and one product only that you should ever put into your gas tank. That product is called Sea Foam.

If you want to nix the carbon deposits, first pour two cans into a half tank of gas. When you've run through that gas, suck another half can through your PCV valve at high idle until the engine stalls. Wait five minutes and turn her over, and you'll find it runs better than you had ever imagined.
'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!)

#289867 - 11/13/03 09:31 PM Re: Carbon Build-Up
uwsacf Offline
Over the Hill

Registered: 06/01/03
Posts: 3557
Loc: Orlando, Florida

I believe if you look at that thread - one of the Gassit members (the guys who put on SSH3) does the MotorVac in his shop...

Name is Scott = goes by atlSS96 and he is near Atlanta.
"I prefer the tumult of liberty to the quiet of servitude."

Thomas Jefferson to James Madison, 1787

2007 BBB MSRT8
2003 BBB Crown Vic Sport LX
1996 BBB Impala SS
1972 Chrysler Newport

Page 2 of 3 < 1 2 3 >

Moderator:  KayTar, RF_Overlord 
Who's Online
7 registered (Old_Guy_Stu, Alameda_Commuter, Rainbowpizza, Bangster, Prospect62, Packman), 78 Guests and 301 Spiders online.
Key: Admin, Global Mod, Mod
Shout Box

Top Posters (30 Days)
bluejay_32 163
Old_Guy_Stu 91
a_d_a_m 79
CrystalPistol 68
TheCableGuy 55
DudeAbides 51
RF_Overlord 48
Moby_Vic 47
Ponyguy 45
Bangster 42
Member Spotlight
Member Since: 03/13/09
Posts: 1077

Copyright 2000-2015 by and Steve Spaulding. All Rights Reserved.
The photographs, graphics and data contained in this Web site are the properties of the contributors, or and may not be used without expressed written consent. is not affiliated with the Ford motor company.

Happily consuming the fuel saved by Prius owners!