Hogs150
Member
I'm sure this has been discussed before but i'll ask anyway 89 or 87 octane I've used both i don't see or feel a difference .
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I tried 87 for a week then switched to 89. Picked up about 2MPG.
Hemi is a 10.0:1 compression engine, you need to run something better than regular 87.
The engine CAN run 87, the computer will just pull timing to prevent knock, and you'll lose both power and economy.
You bought the engine for the power, right? So run the correct fuel.
i have a 2012 with a 87 oct.diablo tune runs great 89 oct.makes no difference so why spend the extra .25 per gal as far the fuel mil. about the same
Here at a gas station chain we have the option of what they call clear gas. It is 88 octane, with no ethanol, or, additives. I have been running that and have been happy with the way the truck runs.
No, at the same fuel station only difference is the octane rating.I have a question. Are there more cleaning detergents in higher octane fuel?