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Old 09-19-2017, 09:50 AM   #22
LT7A
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Join Date: Oct 2015
Location: PNW
Posts: 3,472
Re: here is a question for all the California people

I ran across this thread searching for fuel stabilizers and I have some questions. Do you guys try to coordinate the octane to the tune and compression ratio of your engine?

At the molecular level, octane measures the resistance to burn. Weird huh, the higher the octane, the harder it is to burn. That's why it helps with detonation -- it's less susceptible to burning at the wrong time. Harkening back to physics, for those interested, it also has a higher potential energy -- so when the burn comes, it comes on hard. I.e., it produces more energy.

I used to always run "the good stuff" and now I run the lower or mid-grade unless I have a detonation problem. It not only saves money, it should run better with the appropriate octane and probably burn cleaner.

A couple of posts above said to run premium without asking the original poster about his engine. Do you guys run the 91-92 regardless, just to get the most refined formula and most additives?

Last edited by LT7A; 09-21-2017 at 07:37 AM.
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