Best Cruise Speed - Ford Powerstroke Diesel Forum
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post #1 of 2 Old 11-11-2010, 05:58 PM Thread Starter
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Best Cruise Speed

I want some opinions on what everyone thinks my trucks best mpg speed would be on the the hwy. I never go over 60 mph because im turning 2000 rpms and think it would really start sucking fuel if go any faster, Im I wrong in thinking that? The truck turns about 2400 rpms at 75 mph and feels like its screaming for cruising but its not working hard i dont think. At 60 mph I get about 12 mpg.

1997 Ford F350 CC LB 4x4
2007 F350 axle/suspension swap
238/100 Full Force Stage 3 Injectors
H2E Turbo
Fully Built Trans with Triple Disc Billet
Tony Wildman Chip
Superduty IDM
5'' Straight Pipe 7'' custom sideways bed stack
Leveled on 37s
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post #2 of 2 Old 11-11-2010, 06:08 PM
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I run 2000rpms at 70mph. I find on the highway for me at stock height and 285's that seems like natural cruise speed. If I go any faster (which I always do because I have a need for speed) the fuel mileage drops dramatically.

2012 F-250 Crew Cab LB 4x4 OFF ROAD
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