I fill up when my needle is just starting to get PAST the red zone. Ford engineers must be really cautious folks, because this means I still have ~2 gal left.
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'67 Mustang - out of commission after an accident
'00 Echo - DD
'11 Kia Rio - Wife's DD
'09 Harley Nightster - 48mpg and 1/4 miles in the 12's
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