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HPIA4v2 · 02-04-2014, 09:08 AM

Most BMW nowadays, with turbo I wouldn't run anything below 92. Not only you risk engine damage from detonation (very small risk due to knock-sensor), but you loose mileage anyway due to advance timing to combat detonation. So at the end, no saving.

02-04-2014, 09:08 AM	#14
HPIA4v2 Major 254 Rep 1,391 Posts Drives: F80, F86 Join Date: May 2007 Location: Washington iTrader: (3)	Most BMW nowadays, with turbo I wouldn't run anything below 92. Not only you risk engine damage from detonation (very small risk due to knock-sensor), but you loose mileage anyway due to advance timing to combat detonation. So at the end, no saving.
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