Race Fuel
03-21-2008, 11:54 AM
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My Ride: 2006 E60 M5
all option (except soft close doors)
Has anyone played with 100 RON fuel in their non-flashed M5? If so, any opinions or dyno info to support its use or even a mixture for >91 RON?
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Vman33
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03-14-2022 04:43 AM