AV gas or Race fuel?

[PrideRider]

Alright...I have 11:1 high compression piston in my 400 and i have been debating on running av gas in it since i cant buy race fuel anywhere close to me. The only thing i dont like about what i have read about this av gas is it is 100LL (low Lead) and might have more carbon build up than i want. On the other hand a friend of mine has a 69 Stingray with 13:1 427 and he runs it. If anyone have any information on this av gas feel free to add your 2 cents...thanks!

[Stickman400]

It's been discussed on here before. I can't remember where the thread is but I'm pretty sure they said it was safe to use.

[PrideRider]

yea i been reading about it and as far as i can tell i shouldnt have too many problems with running it but i just wanted to know what anyone else thinks about it? I know tht your not suppose to run it in anything but a airplane or you can be fined but if it makes my 400 run good who cares right!!! might mix it with some premium

[ish416]

Just make sure you get 100ll without de-icer otherwise your engine will be kaput.

AV fuel is not supposed to be run in street legal vehicles. Sorta like off-road diesel is not taxed the same as on-road diesel. So, you are not breaking any laws since your EX is not street legal.

Btw, you are just wasting your money running anything but premium on an 11:1 engine without any timing advance and will honestly probably make less power than someone running premium.

[KKiowaTJ]

I have ran it in the past in quads and bikes. Its a dry fuel made for high altitudes so no moisture can occur. When i used it we added a oil lubricant so it didn't burn up the motor. Marvels mystery oil works and I'm pretty sure there are others that can be used as well. Good luck either way

[slightlybent47]

It won’t make it any faster and is not necessary for your application. 93 octane is all you need. Save your money for things you really need.

[Wheelie]

I ran 100LL in my quad for several years, never had an issue. My brother runs it in his Quadzilla--never had a problem in over 3 years.

On a side note, I don't know if it was a placebo effect, but race gas seemed to perform slightly better than AV gas.

[breastman569]

I ran av gas for years in my 250r's and I never had a problem with the engines. The only thing I found is that when running it I was going through petcock gaskets every season. As soon as I switched over to 100 race I have yet to have that problem and I'm still using the same caster 927 so I know it's not my premix. As far as performance I couldn't see a difference however my av gas kept longer than race when mixed. I hope this helps.