Quote:
Originally Posted by WhiteGDB
Way more accurate to calculate it at each fill up. My subaru's on board computer always says I'm averaging 1.5-2 mpg more than in real life.
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I've never used an onboard MPG calculator or GPS and I have always suspected as much...thanks for confirming it.
I'll stick with the gas pump and manual calculation method(the one that boggles service managers minds when you explain it to them!).