Thread: Gas grade?
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      01-31-2014, 08:26 AM   #4
RoundelM3
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Drives: 15 F80 M3, 22 G01 X3 30i
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You're driving a car with a turbocharged engine, which is sensitive to octane rating and will lower its power output to meet the lower fuel grade to prevent pre-ignition/detonation. Is it really worth the small difference in price? I never use anything but Shell V-Power in any BMW, normally-aspirated or forced-induction.
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