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Old 01-16-2011, 11:20 AM   #176 (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 UFO View Post
That map was not done figuring in wind resistance?
So far as I can tell.

OTOH I average 24 mpg, empty or loaded (up to 2k payload) across Gulf Coast Texas with some fairly stiff winds depending on the time of year. My motor has a slightly higher rating than that one, but is an otherwise similar truck. The times I have chosen to run 68 mph show about 22 mpg with no adverse winds. I have not come across anyone getting 24 at 70 in a CTD. At 60, yes, numerous instances.

The purpose of this graph was in discussion of timing advance changes to improve FE. (Mine is stock).Maybe my truck would do better with a timing change, but I'm loathe to add a tuner at this point.

Last edited by slowmover; 01-16-2011 at 11:26 AM..
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