I've been running the NOS Octane boost product in my last several fill ups. I seem to get better gas mileage and there is a noticeable "seat of the pants" feel over the 91 Octane pump fuel I can get here in Colorado. Anyone else using Octane boost products? If so, what are you using and how do you think it's working?
11-21-2000, 01:24 PM
11-21-2000, 02:13 PM
pump gasoline and will increase AK and is not any more harmful than regular gas. Lots of the guys running older 5000Turbos and V8's have used the stuff for years with no reports of problems.
11-21-2000, 02:23 PM
If your car does not ping with out it, then Generally adding it will make no difference.
If you car does ping, and by adding it does not ping, you will get some more power, as timing would not be as retarded.
If you get a bad batch of gas, Octane boost may help out, so it saves you draining your tank.
In severe Hard pushing of you car, you engine will run hotter, and may start to cause pinging when you push you car hard for extended periods of time, then Octane boost may prevent the pinging.
But Like I said, as far as extra HP from a Bottle of Octane boost in car that runs perfectly without it, and Benefits will be negligable.
Also some Octane Boosts can damage O2 sensors..
11-21-2000, 02:23 PM
IIRC, you're in <a href=http://www.audiworld.com/forum/m/s4/msgs/120134.phtml>Denver</a>?
Regardless, see <a href=http://www.p66race.com/racemap.htm#Duggan Petroleum Company>Phillips 66 Race gas locations</a> or <a href=http://www.racegas.com/RaceGas/gt100loc.htm>Sunoco GT100 locations</a> or I suppose you could <a href=http://www.eskimo.com/~eliot/rocket.html>roll your own</a>.
11-21-2000, 03:00 PM
11-21-2000, 03:09 PM
Yes, I live just outside of Denver.
Have you used either the "race gas" or the Taluene mixture?
2000 1.8T, APR Stage II, HKS Powerflo.
11-21-2000, 05:04 PM
Milehigh, I am up in Ft. Collins and I have used the Sunoco 100 from the Ft. Lupton supplier and Phillips 66 108 octane here locally. The Sunoco product is the only one "Technically" legal for street use though. On my stage III there is a definate power increase with the Sunoco 100. The Phillips gas gave me what felt like the same increase but .50 a gallon more. I am going into evergreen Dec. 2 to have my car dynoed. Hoping for the best! It better kick the ----- out of my K04 dyno run.
I'd have no qualms (other than the $4.xx/gal) about putting 100 octance in my car. I'm down in the Springs, so have to drive pretty far to get "real" gas. If I were you, I'd run my tank darn near dead-empty then put in 5-6 gals of 100 octane and drive it for a while to see what it does for you.
FWIW, I know there's a 100 octane APR program for the 2.7T engine - I'd assume they have one for the 1.8T too....that'll *REALLY* show a difference!
11-22-2000, 05:17 AM
I notice approximately 1-1.5 mpg increase on Conoco or Texaco (all "91") over Diamond Shamrock, so try different brands of "91" as well. YMMV.
11-22-2000, 05:54 AM
I put in 2 gallons of the stuff with a full tank of Sunoco 94. My car didn't run any different than it did/does with super unleaded. It just made my exhaust tips black. Not worth the $6/gallon, IMO. Maybe it does raise the octane rating, but with no noticable improvement in acceleration.
11-22-2000, 06:35 AM
It won't give you any gains. Optimal performance in octane rating is right where the engine runs the best without detonation. So if you ran 93 octane gas, and the car was just over the margin in pinging, you'd achieve greatest performance. Now if your car was modified, and was prone to ping under heavy load, running higher octane would benefit you. Here in TX, with a supercharged NA engine and it's 75 outside on a cold day, at the track I run 100 octane. Your car blew black because it couldn't burn the fuel fast enough.
And yes, I can't spell :P
11-22-2000, 07:48 AM
sounds like the sunoco 94 is about where the chip maxes out. that is good
info. 91 or 92 is definitely inadequate and would benefit immensely from
octane boost to about 94.
11-22-2000, 09:55 AM
I would not recommend using toluene or xylene bought at a hardware/home/paint store in your automobile.
Yes, these components raise octane slightly, but the data posted here is for these materials in their analytically pure form.
Most commercial products are impure mixtures of hydrocarbons and may contain materials that may either gum up the fuel system and leave resinous materials in the combustion chamber or may destroy seals in the fuel line. Also there is no standard a paint removal product has for dryness either. Toluene and xylene will both dissolve water to 0.5% by weight.
Current labelling standards on these products require the listing of active ingredients by %basis and ingredients that are inert and unlisted may not be inert as far as a fuel system is concerned.
Just something to think about...
Michael W. Justik, Ph.D. (Chemistry)
Case Western Reserve University