1976 Corvette
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From: In a parallel universe. Currently own 2014 Stingray Coupe.
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This should be asked in the C3 section, so off it goes.
Le Mans Master
Joined: Aug 2017
Posts: 8,336
Likes: 2,809
From: Cool Northern Michigan
Where do these non-knowledgeable mechanics come from?
No, you don't want that stuff at what, $1.50 more than premium? Nonsense. For your last tank full of gas for the season then yes, it stores very well.
The proper way to determine octane needs w/o knowing engine data is to start with the highest octane available. Next fill up, drop down a notch by mixing a half a tank of mid-grade and half premium and monitor pinging. If it still doesn't knock, drop down to full tank of mid-grade and so on. You have to listen to the engines needs.
No, you don't want that stuff at what, $1.50 more than premium? Nonsense. For your last tank full of gas for the season then yes, it stores very well.
The proper way to determine octane needs w/o knowing engine data is to start with the highest octane available. Next fill up, drop down a notch by mixing a half a tank of mid-grade and half premium and monitor pinging. If it still doesn't knock, drop down to full tank of mid-grade and so on. You have to listen to the engines needs.
Last edited by HeadsU.P.; Aug 10, 2019 at 03:54 PM.
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Burning Brakes
Joined: Mar 2013
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From: Springfield Missouri
Is my vette stock?? HAHA
Joined: Oct 2015
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From: Im not allowed to tell you
2020 C3 of the Year Finalist - Modified
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If you live in a state that has ethanol free gas and its not ridiculously expensive, I would go with that. My friends in Utah say some of the chain Food/gas stations carry it with no mark up