Quote:
Originally Posted by TrebMaxx
I don't want to take a chance on mucking up the engine on my BMW. Very rarely will it get anything less than premium and if it does, 89 octane is the bottom limit. My truck is a Flex fuel but it seems sluggish when running the E-85 so I just stick with the 87 octane.
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Just a heads up, E85 is 107 octane. So its not the octane rating that matters~