Carbon deposits?
Thread Starter
Race Director
Joined: Aug 2002
Posts: 10,244
Likes: 96
From: not far enough from Chicago
Carbon deposits?
Is there any truth regarding carbon deposits;
If you don’t drive your car hard or frequently enough they will form on the valves? I use 93 octane BP fuel. It never stays in the tank longer than 3 weeks if I don’t feel like driving it much. It's just a toy and I don’t play with my toys unless I feel like it.
I don’t have a lot of opportunities to drive WOT for more than a short distance. I was told by a neighbor with an old GTO that was the case. What do you guys think?
If you don’t drive your car hard or frequently enough they will form on the valves? I use 93 octane BP fuel. It never stays in the tank longer than 3 weeks if I don’t feel like driving it much. It's just a toy and I don’t play with my toys unless I feel like it.
I don’t have a lot of opportunities to drive WOT for more than a short distance. I was told by a neighbor with an old GTO that was the case. What do you guys think?
Last edited by StevieB; Sep 7, 2012 at 04:25 AM. Reason: sig
Le Mans Master
Joined: Feb 2007
Posts: 9,296
Likes: 1,531
From: Oviedo Florida
2024 C5 of the Year Finalist - Modified
2024 C2 of the Year Finalist - Modified
2023 C2 of the Year Finalist - Modified
2021 C2 of the Year Finalist - Modified
2016 C5 of Year Finalist
You will get alot of answers to your question.
I have my thoughts garnered from the EPA.
Yes you will have deposits on your valves with the fuel you
are using now.
These are some of the fuel companies that are recommended.
Chevron,Exxon,Mobile,Rebel Oil,Shell, US Oil, and Road Ranger
to name some of the fuel co.
More info---top-tiergas.com
I use Exxon.
Good luck
I have my thoughts garnered from the EPA.
Yes you will have deposits on your valves with the fuel you
are using now.
These are some of the fuel companies that are recommended.
Chevron,Exxon,Mobile,Rebel Oil,Shell, US Oil, and Road Ranger
to name some of the fuel co.
More info---top-tiergas.com
I use Exxon.
Good luck
Administrator
Joined: Mar 2001
Posts: 368,385
Likes: 24,790
From: In a parallel universe. Currently own 2014 Stingray Coupe.
C7 of the Year - Modified Finalist 2021
MO Events Coordinator
St. Jude Co-Organizer
St. Jude Donor '03 thru '26
NCM Sinkhole Donor
CI 5, 8 & 11 Veteran
Even with the better gas, I would think you could still get carbon deposits on the valves. How much - I don't know.
Thread Starter
Race Director
Joined: Aug 2002
Posts: 10,244
Likes: 96
From: not far enough from Chicago
I should have done a search but didn’t because I was in such a hurry.
There seems to be a general consensus that many of the different gas stations all receive the same GENERIC fuel from one brand to the other. I was at a CITGO near my home that was having the underground tanks filled by a tanker that I can’t remember the name that was on it. Was it a CITGO or GENERIC company? I can’t remember.
The tanker guys told me it doesn’t matter if the station was all new and remodeled and looking nice had nothing to do with the quality of the fuel.
It’s the tanks that are the only thing that mean anything.That makes a lot of sense to me. I guess the only way to tell if you are getting new gas from clean tanks is if there is a new station that wasn’t a gas station before it was built……………..
Previously a fast food place or a whatever, that would indicate the tanks are brand new. That idea came to mind after further thought. So, I have never really seen a true real ground up from scratch station.
The true answer to my topic actually may mean nothing regarding the brand of fuel.
CARBON DEPOSITS;
Does it matter if the car is driven hard or the quality of the fuel that matters?
There seems to be a general consensus that many of the different gas stations all receive the same GENERIC fuel from one brand to the other. I was at a CITGO near my home that was having the underground tanks filled by a tanker that I can’t remember the name that was on it. Was it a CITGO or GENERIC company? I can’t remember.
The tanker guys told me it doesn’t matter if the station was all new and remodeled and looking nice had nothing to do with the quality of the fuel.
It’s the tanks that are the only thing that mean anything.That makes a lot of sense to me. I guess the only way to tell if you are getting new gas from clean tanks is if there is a new station that wasn’t a gas station before it was built……………..
Previously a fast food place or a whatever, that would indicate the tanks are brand new. That idea came to mind after further thought. So, I have never really seen a true real ground up from scratch station.
The true answer to my topic actually may mean nothing regarding the brand of fuel.
CARBON DEPOSITS;
Does it matter if the car is driven hard or the quality of the fuel that matters?
Pro
Joined: Mar 2010
Posts: 691
Likes: 19
From: Los Angeles
I've had my engine apart several times.I have used 93 octane in every tank and I like to think I drive my car quite a bit harder than the average guy but don't make it to many track days. EVERYTIME I have pulled apart the engine, there is carbon build up on the valves, not much, but some. From pulling off the heads when the motor was stock, or a year after the cam/head swap to change a sticky lifter, there has been some carbon build up.
I actually have it apart now for a bigger cam. You can see the crusty black on the tops of my pistons before I cleaned them in my avatar. And that's after only 12,000 miles.
Also, I have a very good tune and my AFR almost always runs in stoich.
I actually have it apart now for a bigger cam. You can see the crusty black on the tops of my pistons before I cleaned them in my avatar. And that's after only 12,000 miles.
Also, I have a very good tune and my AFR almost always runs in stoich.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Thread Starter
Race Director
Joined: Aug 2002
Posts: 10,244
Likes: 96
From: not far enough from Chicago
I've had my engine apart several times.I have used 93 octane in every tank and I like to think I drive my car quite a bit harder than the average guy but don't make it to many track days. EVERYTIME I have pulled apart the engine, there is carbon build up on the valves, not much, but some. From pulling off the heads when the motor was stock, or a year after the cam/head swap to change a sticky lifter, there has been some carbon build up.
I actually have it apart now for a bigger cam. You can see the crusty black on the tops of my pistons before I cleaned them in my avatar. And that's after only 12,000 miles.
Also, I have a very good tune and my AFR almost always runs in stoich.
I actually have it apart now for a bigger cam. You can see the crusty black on the tops of my pistons before I cleaned them in my avatar. And that's after only 12,000 miles.
Also, I have a very good tune and my AFR almost always runs in stoich.
Thanks for the reply and everybody else that did so as well.
Drifting
Joined: Jun 2000
Posts: 1,341
Likes: 233
From: Placitas NM
St. Jude Contributor '03 & '04
I've had my engine apart several times.I have used 93 octane in every tank and I like to think I drive my car quite a bit harder than the average guy but don't make it to many track days. EVERYTIME I have pulled apart the engine, there is carbon build up on the valves, not much, but some. From pulling off the heads when the motor was stock, or a year after the cam/head swap to change a sticky lifter, there has been some carbon build up.
I actually have it apart now for a bigger cam. You can see the crusty black on the tops of my pistons before I cleaned them in my avatar. And that's after only 12,000 miles.
Also, I have a very good tune and my AFR almost always runs in stoich.
I actually have it apart now for a bigger cam. You can see the crusty black on the tops of my pistons before I cleaned them in my avatar. And that's after only 12,000 miles.
Also, I have a very good tune and my AFR almost always runs in stoich.
It's hard to look at your avatar!!!!!!!!!!!!
rr
Thread Starter
Race Director
Joined: Aug 2002
Posts: 10,244
Likes: 96
From: not far enough from Chicago
Travis Bickle......................
" You talkin' to me? You talkin' to me? You talkin' to me? Then who the hell else are you talkin' to? You talkin' to me? Well I'm the only one here. Who the f*** do you think you're talking to?"
Obviously that went off topic
The title of this topic is something I seriously would like input from other members here
" You talkin' to me? You talkin' to me? You talkin' to me? Then who the hell else are you talkin' to? You talkin' to me? Well I'm the only one here. Who the f*** do you think you're talking to?"
Obviously that went off topic
The title of this topic is something I seriously would like input from other members here
Last edited by StevieB; Sep 7, 2012 at 04:15 PM. Reason: add comment