Quote:
Originally Posted by Donger
To get the maximum horsepower out of it, the higher octane gasoline is required. It will run on lower octane, of course, but the ECU reeruns the timing.
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I have a 5series BMW, says it's supposed to take premium. I never put premium in it. I was told by somebody in the autoworld this would not cause harm on my engine. Is this not the case? I could care less about horsepower or how fast it gets to 0 to 60 mph. As long as the car can get to 80 mph and I pay less for gas, that is all I care about.