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I forgot to add that I have a manual 5 speed transmission.
I really don't care about acceleration and I don't haul heavy loads or pull a trailer. The two-way highway trip is about 450 km and I do it every 2 weeks.
The terrain is not hilly.
Since the rims and tires in the rear are larger, won't the engine RPM be lower for the the same highway speed ( i.e. 100 km per hour - the speed limit) and thus lower the MPG?
miro
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