Avgas is about 100 octane and it wouldn't damage your engine. It will clog your cat converter eventually but that's about it.

We run it in race bikes all the time (race bikes don't have the cat converters anymore).
It's much cheaper than race fuel.

You have been fairly warned if you want run it in your car...good luck with that!

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FWIW, 100LL (most common grade) avgas has 1.2-2.1 grams of tetraethyl lead (TEL) per gallon of fuel. Leaded gasoline had up to 2.2 gr/gal. Unleaded gas can contain up to 0.001 gr/gal.

https://en.wikipedia.org/wiki/Avgas#Grades
https://en.wikipedia.org/wiki/Tetrae...ation_gasoline

^^^Nothing like data!

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I used Lucas with 94 octane.
My car ran very well with it

Z

this looks similar to the Race Gas...

and some good reviews on it...

https://www.boostane.com/

their website looks similar to Race gas...

Best octane booster is toluene. IF your state laws allow it, and if it's cheap enough.

It's not legal in CA anymore, but when gas hit 4.69 or whatever here in CA... I ain't gonna lie... I definitely took a few... Dozen... Gallons from work... Work bought toluene for like $3/gallon... I wanted to punch someone in the face...

I would blend in E85. I've been using a mixture of E85 and 93-octane to keep the octane rating higher.

I wouldn't recommend AVGAS/LL100. Aside from being leaded (emissions equipment unfriendly), it contains other additives that may not be friendly to your fuel system, to include rubber seals. The additives will also reduce performance, rendering its octane rating worthless for you.
Aside from having aviation fuel experience, I put a lot of research into AVGAS as I was looking to run it in my GTR. Naturally, decided against experimenting with it.

Jet [turbine] fuel in all variations (Jet A/B, JP-#/TS) is kerosene based. Diesel engines are able to use turbine fuel at a loss of efficiency, but a gasoline motor will suffer terribly.

Sorry to revive a dead thread but.. I was recently tuned by seb on ecutek a couple weeks ago and he said that for map 3 I need to put higher octane fuel. the only pump near me that has more than 91 is a 76 in Pasadena with 100 octane. Like POS VETT said, can I mix e85 with 91 on stock injectors to bring my octane up to about 93/95? I could mix the 100 octane gas with 91 but it is $10 a gallon...e85 is a lot cheaper lol and closer