Compression Ignition Addict
Join Date: Aug 2007
Location: New Martinsville, West Virginia
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The gauge can vary so much... if you really want accurate MPG's, calculate the actual miles, and gallons, filling up at the same pump, with the truck parked the same way, so the tank fills up the same. Something as simple as having the front of the truck slightly uphill on one fill up and slightly down the next can skew the MPG results alot... I never trust the gauge for mileage calculations, sevral times I've thougth I"d have a really low MPG tankful wasn't off as much as I thought it would be when I filled up at my normal pump and did the math...
Also, winter blend fuel, combined with extended idle time warming up in this cold weather we're having has hurt my mileage a bit lately.
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