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Old 10-18-2010, 10:27 AM
nanney1 nanney1 is offline
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Join Date: Sep 2010
Age: 46
Posts: 21
Gender: Male
Vehicle: 2006 Dodge Ram
Trim Level: SLT Quad
Color: Inferno Red
Engine: 2002-2007 287ci (4.7L) PowerTech V8 235hp 295lb/ft
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nanney1 is on a distinguished road

O.K. second fill-up. Overhead computer reads 16.2 mpg. Hand calculation says 15.25 mpg. So, a little better than the first tank. The main difference is that I drove with O/D off on my short trips and non-highway.

On the other hand, it dawned on me that I was basing my hand caculations off of the odomoter readings from the overhead computer and not the odomoter on the dash, which doesn't have a trip set.

Just because I'm OCD about things, on this fill up, I'll compare the dash odomoter number to the overhead to see how close they are. Could cause a difference in the hand calculations again. It's kind of a pain since I'll need to actually write down and subtract the start/end numbers since I don't have a trip on the dash. Hopefully, it will be the same or very close to the overhead reading.
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