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      11-09-2012, 09:10 PM   #38
Second Lieutenant
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Drives: 2013 X1 xDrive28i M Sport
Join Date: Sep 2012
Location: Southwest Michigan

Posts: 232
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I'm happy to report that even with the winter blend fuel, my last two roadtrips have netted close to 29 mpg. It's still a little short of what I expected considering the driving was virtually all highway, but it's far better than the 25 mpg I had been getting. The engine breaking in is probably a small contributor, but the majority of the improvement has to be tire-related since the bump came immediately following the switch to low rolling resistant Pilot PA3 winter treads. I'm thinking the Goodyear EfficientGrips might not be around long.
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