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-   -   race gas ? (https://classracer.com/classforum/showthread.php?t=78657)

rod 02-22-2021 09:54 PM
race gas ?
 
if I mix 91 0ctane pump gas with 110 VP, do you really get 100 octane?
thanks Rod in AZ

J D Parker 02-22-2021 10:35 PM
Re: race gas ?
 
It may be made for street cars but any amount of 91 octane will cause you to fail fuel check.

NHRA1926 02-22-2021 11:41 PM
Re: race gas ?
 
He didn't ask about fuel check, he asked about octane rating.

Adger Smith 02-23-2021 02:33 AM
Re: race gas ?
 
https://www.sunocoracefuels.com/tech...ulating-octane

Here this will help you figure it out.

BTW: just in case you didn't know.... mid grade is a mix of premium and regular.
something like 60% regular & 40% premium

e vassar 02-23-2021 11:35 PM
Re: race gas ?
 
Quote:
Originally Posted by NHRA1926 (Post 635054)
He didn't ask about fuel check, he asked about octane rating.
Right ! But he posted the question on a stock S/ stock forum .. so need to make sure nobody fails fuel check


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