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Old 01-20-2016, 10:03 PM   #6 (permalink)
ennored
Master EcoModder
 
Join Date: Sep 2012
Location: Motor City
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My 2001 full size GMC van with a 5.0 V8 could pull down 20 MPG on the highway, if I kept the speed to 60 MPH. More like 17 at 70 MPH. That's pure highway though.

That said....
BOATTAIL!

Last edited by ennored; 01-20-2016 at 10:28 PM..
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