Test your mpg results. (odometer accuracy)
Thought I would put this out there as an officer of the law stopped me to discuss his modding efforts. His records were wrong because of tire dimensions, and a ring and pinion change.
Test your mpg by using an online trip calculator against your recorded odometer/ other distance measuring device.
Gps equipped vehicles can record close enough for most applications but if you have not corrected your speed sensor readings or the speedo gear your mpg may be way off.
I use yahoo maps myself and never even consult the odometer as my Oversized front drive tires have seriously altered that reading. You may find your mpg is better or worse than you believe.
It is simple math to follow and if you keep reciepts from your stops the addr. is on them so you can plug them rite into the trip calculator.
mi2centz.
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