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Re: What grade gas do you run?
I own a Vortec supercharged, 98 Ford Cobra that I had to put 87 oct, in once while driving through north FL. Long story short; I filled the car up with regular fuel despite the fact it’s supposed to run 93 at a minimum. I ran the car through the entire tank and never noticed any difference. No knock, no pings, and no lack of performance.
I was later told that the engine could have detonated because of the advanced timing and engine compression, which could have caused sever damage.
Well I have since had to run the car on 87 because of hurricanes in my area putting a shortage on fuel; still without any trouble.
I use regular in my FJ, and 12k miles later “no problems”.
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