MPG
Mileage has been gradually going up as the engine miles increase. I also use Techron once a month. Once the engine hit 20k miles I saw an increase in mileage.
A proper alignment, staggered summer tires, recommended inflation (TPMS) and summer temperatures help, too!
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Wind, temp and tire pressure all effect what I average.

E63 Biturbo, UPD Cold Air induction kit, UPD performance crank pulley and UPD adjustable rear suspension with ride height adjustment.
CL55 UPD Cold Air Boost kit, UPD 3000 stall converter, UPD 77mm SC clutched pulley and beltwrap kit, Custom long tubes, UPD crank pulley , UPD suspension kit, UPD SC pulley, Aux. HE, Trunk tank w/rule 2000 pump, Mezeire pump, UPD 5pc idler set, Aluminum rotor hats.
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