Bought my truck in January, been putting all the gas receipts in the center console, just got around to typing them all in and figuring a gas mileage. Lie-o-Meter routinely says 10.5. I also didn't write down the mileage on all the receipts, so these are 7 and 3 month averages. Checked the receipts vs the bank statements and I lost one receipt in June for 97.08, so I put it in as $3.65 a gal for 26.597 gallons.
Overall if the 10.39 mpg is accurate I am really happy since it's a stock 2000 truck with leaking exhaust headers, and I drove it 2000 miles with 2 faulty COPs. (Although it shuts off the fuel to those cylinders...when they are failed.) Most of the failed COP driving was in the past few months which showed a reduced MPG of 9.79, but could be because I was using the AC more.
Someone else who keeps records as detailed as me. I was taught by my dad, who's a mechanic, when I bought my first car to try to keep track of your gas mileage as it may be your first clue that something is wrong with your vehicle.
AVERAGE MPG 10.54
As you can see, I don't put many miles on my truck since I only drive when I need it or once a week just so it doesn't sit too long.
1999 F350, XLT, 4x4, 6.8L V10, CC, LB (Mine on the weekend, wife's during the week)
2009 T&C Touring, 3.8L V6 (Yes, I drive a minivan to work)
1997 Nissan Hardbody, 2WD, 2.4L I4, "Simple Green" (Fixing Up to Sell)
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