Fuel Octane

[TSiWarrior]

Can I run 110 in my car without serious damage? and if so what are the acutal gains? How come they say I should only run my car on 93 octane? Im trying to get a few more hp out of her w/o making any real modifications.

 

[CanadianTSi]

Prolonged use of leaded gas such as 110 will kill your o2 sensor.

 

[Staytuned]

Unless you actually tune for 110 octane you will get no performance gains. Your car will actually run a lot richer.

 

[25psilaser]

Make sure its unleaded race gas,they always run better on high octane gas.More boost no knock,and if you still have nitrous it will love it.I run GT 109 with 25psi and a 75shot of nitrous with no knock.

 

[96whgsx]

If you are running a cat, get unleaded. Well about the comparason between 110 and 93 is price and performance. I don't think you want to fill up your tank with 110 because it will cost a lot, so you will most likely go for the 93 for price.

 

[Turbo Talon DL]

I think MachV sells o2's that are ok for leaded use. I think they're Denso, but they are a little pricey. Just run 93, people make 400hp on 93 pump.

 

[BacknBlack92ESi]

I pulled my 13.9@96mph on 110 Race Gas and a little 92 Pump in the mix. It did kill my o2 sensor. Two weeks later I pulled a lean code. Fuel Trim Bank 1. Damn the luck. But hey, I broke into the 13's