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phoenix1995
10/31/2009, 2:42PM
About: BMW 318is
what petrol type
Just purchased 1st BMW 318is, not sure what petrol type best to use, 91 or 95 octane?
Chase257
11/02/2009, 12:21AM
actually the best gas to use is the lowest octane the burns properly (gives max power and efficiency). im guessing 91 octane would be more than good for the car. the higher the octane not needed is just a waste of money and absolutely no performance gains
Flavia_241
11/02/2009, 6:49AM
really? i find in my 318ti that the higher octane fuel helps minimize the time from when i hit the accelerator to when the engine kicks in

