Octane Booster Question
 

I have read some posts here that the stock 2018 ZL-1 will respond well to high octane fuel, potentially delivering an extra 20-25 horsepower. We only have 91 here in New Mexico, so I was wondering if some octane booster would do the same thing as 100 octane gas.

Does anyone have some input about this subject?

Thanks.

Mark R.
Albuquerque NM

Boostane is a good option. 3 ounces would bring you from 91 to 94 and help your car develop full timing advance. 100 would obviously do that as well but is overkill on a stock car, not to mention way more expensive to run consistently.

Octane
 

Hi Mark, the LT4 loves Octane. 100 is not overkill. Even better is a flex fuel upgrade to 106 octane.

Thanks to both of you for the responses. I'm keeping the car stock, so flex fuel is not an option. I'm ģoing to give the octane booster a try.

Good info.

Sort of off topic, but has anyone ever looked into a dealer doing a legit flex-fuel upgrade that would retain warranty? Just spitballing.

No they wont do it unless it was a actual option for the vehicle. It's bullshit too...all GM GDI engines should come with a flex fuel sensor.

I’ve used Race Gas brand race fuel concentrate in mine since the 1st fill up. It’s not just semantics, you want race fuel concentrate of whatever brand not octane booster.

As stated before use a Race fuel concentrate. Boostane, Torco, and Race Fuel. These are not boosters. They are actual concentrates.

I would use Boostane Pro at 4oz every fill up. One can will last you 8 fill ups.

Where’s a good source for Boostane? Typical auto parts stores? Haven’t really ever looked

With all their big push for “Emissions” it very well should be.

Right from their website. The Tuning School also sells it, and Amazon of course.

Thanks for all the input.

Torco is good stuff too.

I saw on YouTube where Demonogy made 90 more whp on just Boostane allowing him to use the hot tune for race gas from the factory. What’s the chances GM could give us a hotter tune for higher octane fuel?

Is that 4 OZ per a full tank?