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Old 01-28-2017, 08:10 AM   #80 (permalink)
slowmover
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Join Date: Oct 2009
Location: Fort Worth, Texas
Posts: 2,442

2004 CTD - '04 DODGE RAM 2500 SLT
Team Cummins
90 day: 19.36 mpg (US)
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Quote:
Originally Posted by Hersbird View Post
That's really good for that route. How do you run the downhill? I'd be way too chicken to EOC on those roads.
As with skykings reply, the same is true for gear choice around town. Higher rpms on some roads -- non-limited access -- as need to rapidly decrease speed isn't optional. So, a slower than speed limit choice (say, 37 in a 45) as rpms at 17-1800 is no real penalty, and need that engine drag to slow quickly. Rpm drop gear to gear is significant. Have to always be aware of tactics necessary to have it work in ones favor. An 8000-lb truck, even with great 4-whl disc brakes -- can only stop so fast. Same for lane changes and the like. Same lane and steady rpm win out. But slower travel speed is necessary.

I took Diesel Daves challenge years ago and brought city mpg from 18/19 to 22/23 by tightening up habits. It was mainly a matter of fewer miles. But it was in being rigorous about trip planning that the savings really added up. 22/23 city at a time when Hwy was 24/25.
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