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In all honesty, I tried 89 and then went with 94. I don't know why but I clearly feel a difference in mileage and power in my 335i after using 94 quite a bit.
Hence I continue using 94 and very happy with it. It's only costing me a few more dollars but I'm happy with the outcome...
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MODS: *** / M Sport + Performance / Meisterschaft / Challenge / MORR / more to come!  ***
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