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Message: [QUOTE="JRLott, post: 1456553, member: 19991"] That's a fair amount of weight and bricklike aerodynamics for a gasser to be pushing around...even with today's technology. That's still 2-3 MPG better than the old motors would get. LOL I think the 3.73 gears keep the motor in its happy place more often, rather than some calculated BS or conventional wisdom does, but I agree with you on the 85 MPH. He's gotta be believing his lie-o-meter. Guy down the street swears he gets mid 16s in his dually with 3.73 gears. Dad's is a CCSB with 3.55, as is mine. The best I ever got post weight loss driving 75-85 was 17.9, but typically in the high 16s to the occasional low 17s. Earned a driving award a while back...tried slowing to the speed limit plus no more than 5 MPH and have had three highway tanks over 18 since, 18.4, 18.5, and 18.8 with another 17.9 in there. Pre-weight loss best was 15.6. All hand calculated via excel spreadsheet and Gass Cubby. [/QUOTE]

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