Chevron PurESCAPE
Thread Starter
Melting Slicks
Joined: Jun 2006
Posts: 2,208
Likes: 1
Chevron PurESCAPE
Just bought two bottles, buy one get one free, of Chevron PurECAPE gas treatment. I've never used an additive before, but this one got a great review--you can actually feel an increase in response, from a Corvette mag. And Chevron was the first to come out with the additive that cleaned injectors back in the '80s. For $3.50 a bottle, figured I'd give it a try next fillup. Anybody else used it/read about it? 
Le Mans Master
Joined: Mar 2002
Posts: 5,253
Likes: 50
From: Sandy Eggo Calif.
St. Jude Donor '06-'07-'08-'09-'10-'11-'12, '16
I just bought some, $6 a bottle at Pep Boys. I'm not sure I can feel anymore "G's" like the article said, but it may be there. Can you get it on line somewhere?
Thread Starter
Melting Slicks
Joined: Jun 2006
Posts: 2,208
Likes: 1
Team Owner
Joined: Jun 2001
Posts: 26,714
Likes: 344
From: Houston, TX
Just bought two bottles, buy one get one free, of Chevron PurECAPE gas treatment. I've never used an additive before, but this one got a great review--you can actually feel an increase in response, from a Corvette mag. And Chevron was the first to come out with the additive that cleaned injectors back in the '80s. For $3.50 a bottle, figured I'd give it a try next fillup. Anybody else used it/read about it?
Just my opinion - sometimes I'm wrong. I'd be surprised if I am this time
Race Director
Joined: Mar 2005
Posts: 10,399
Likes: 25
From: Austin Texas
Snake oil.
If you are using premium brand gas the gas already has additives and cleaners in it. If they are claiming an Octane increase; first, it can't be much of an increase for $3.50 a bottle (Torco Octane booster costs $16 for 32oz. to treat 10 gallons of gas) and second, the octane boost won't do you any good unless your car is tuned for it.
If you are using premium brand gas the gas already has additives and cleaners in it. If they are claiming an Octane increase; first, it can't be much of an increase for $3.50 a bottle (Torco Octane booster costs $16 for 32oz. to treat 10 gallons of gas) and second, the octane boost won't do you any good unless your car is tuned for it.
Thread Starter
Melting Slicks
Joined: Jun 2006
Posts: 2,208
Likes: 1
Probably right, and if it was anyone but Chevron, I wouldn't. I doubt it will do any harm--and the review was really strong, so what the hell...for 7 bucks, why not. 
I'll post results when I do try it.
I'll post results when I do try it.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
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
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
Team Owner
Joined: Jun 2001
Posts: 26,714
Likes: 344
From: Houston, TX
Everybody has numbers to back up tests. I don't know what you do for a living, but I've been in sales for 33 years. You'd be amazed at what sales and marketing guys can come up with to back up their claims. Someone once told me "all it takes to make a chart is numbers". True'r words were never spoken.
Le Mans Master
Joined: Jul 2005
Posts: 5,328
Likes: 405
Everybody has numbers to back up tests. I don't know what you do for a living, but I've been in sales for 33 years. You'd be amazed at what sales and marketing guys can come up with to back up their claims. Someone once told me "all it takes to make a chart is numbers". True'r words were never spoken.
My favorite is "I only state the facts as I make them up". 
Even if the "catalyst" somehow caused the combustion process to happen quicker, it's more likely to cause a reduction in power. There is an optimum point ATDC for peak cylinder pressure to occur for best mechanical advantage/power. Spark advance takes in the ignition delay (the time for combustion to occur) to produce best power...any sooner or later causes a reduction in power. (This assumes no knock present with optimum spark advance. Any knock will reduce timing/power.) If the "catalyst" causes quicker combustion, then the spark advance would have to be changed to take best advantage. With no other changes than adding the additive, peak cylinder pressure will occur too soon to make use of optimum mechanical advantage resulting in a decrease in HP. Cylinder pressure will also increase more as the piston approaches TDC...any increase in cylinder pressure BTDC causes negative work resulting in a decrease in HP. Again, this is all assuming the "catalyst" actually works and the combustion process happens quicker.
If anybody doesn't like these facts, I can make up something else.
Team Owner
Joined: Jun 2001
Posts: 26,714
Likes: 344
From: Houston, TX
My favorite is "I only state the facts as I make them up". Even if the "catalyst" somehow caused the combustion process to happen quicker, it's more likely to cause a reduction in power. There is an optimum point ATDC for peak cylinder pressure to occur for best mechanical advantage/power. Spark advance takes in the ignition delay (the time for combustion to occur) to produce best power...any sooner or later causes a reduction in power. (This assumes no knock present with optimum spark advance. Any knock will reduce timing/power.) If the "catalyst" causes quicker combustion, then the spark advance would have to be changed to take best advantage. With no other changes than adding the additive, peak cylinder pressure will occur too soon to make use of optimum mechanical advantage resulting in a decrease in HP. Cylinder pressure will also increase more as the piston approaches TDC...any increase in cylinder pressure BTDC causes negative work resulting in a decrease in HP. Again, this is all assuming the "catalyst" actually works and the combustion process happens quicker.
If anybody doesn't like these facts, I can make up something else.
