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Highway Driving & Gas Mileage

2K views 0 replies 1 participant last post by  scotthorensky 
#1 · (Edited)
I'm shopping for a Z3 (or Z4), and I commute 100 miles, all highway. How high will the engine run (RPM-wise) at 80 mph? I am concerned that the RMPs I'll be running at while commuting to work will kill gas mileage.

Is this a valid concern? What are you guys seeing?
 
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