RPM versus fuel mileage

dimanche 7 septembre 2014

Something just doesn't make sense? I get better mileage above 2000 rpm

then if I'm at say 1500 to 1800. Just doesn't make sense. When towing mileage is horrible 6-10 mpg If I'm in OD it drops to 4 mpg! But in D 10+ above 2200 RPM.

When empty 70 at 2000 rpm is optimal 20 MPG any lower in RPM,s and it drops to 17.

I'm thinking turbo efficiency or maybe my tune?

Lost contact with my EFI guy can I get tunes from someone else?




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