Re: OT: Real world Diesel Mileage?

Posted by T_Bone on August 16, 2005 at 11:59:20 from (4.240.42.55):

In Reply to: OT: Real world Diesel Mileage? posted by Dug G. on August 16, 2005 at 09:42:16:

Hi Dug,

There's way to many variables to take a mileage poll and get any type of usable info even while empty.

First is the nut behind the wheel. This nut has the largest effect of fuel mileage. From my fuel mileage test road, just acellerating slightly to too fast can drop 2mpg in the 5 mile slow drive to my test road where I hold a very steady foot pedal for the testing.

I just made a excell spread sheet for fuel mileage where I track single tank, 3,5,and 10 tank average, trip mileage and life time fuel mileage.

Tank averaging will greatly effect single tank averaging. My consistant 19.2mpg single tank mileage can drop to 18.5mpg with multi-tank averaging

My 15k mile life time fuel mileage is 17.1mpg that included part of 6k miles of pulling 16kGCW thru the Colorado Rockies and the other miles thru the AZ mountains.

My recent 3700 mile 7 State trip was 13.41mpg average. 1300 miles empty at 75mph, 650 miles pulling 15kGCW at 70mph, and 1750 miles pulling 31kGCW at 60mph. Single tank average ran from 7.21mpg to 21.75mpg due too incomplete fillup's and why you need tank averaging.

My new 23k mile life time average is now 15.09mpg, just because of one heavy loaded fast trip.

Life time fuel mileage = total miles / total gallons.

Me, I'm pleased as punch with the above numbers as that's double than I've gotten with any towing vehicle I ever owned in the past 40yrs.

02 F350 CC, DRW, lwb, 4wd, 7.3 PSD, 6spd, 3:73

T_Bone

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