for me, its a personal thing. every gas station i can pass is like a symbolic middle finger to the oil companies and everything they represent.

 

Matt you get a Thumbs-Up on this Post.

Terry (tiger)

BTW, Very well put, IMO

 

tank 13:
565 mi @ 44.9mpg
7009 total miles.
refilled 9.12gal @ $3.29/gal.

 

Matt - Can you check your calculations again? 565 miles / 9.12 gal = 61.95 mpg -- or -- 565 mi / 44.9 mpg = 12.58 gal. Wow, $3.29 a gal? I'm not paying any more than $2.59 in Pittsburgh. Just wow.

 

ya, i think we're being punished for the election results.
i refilled in a high-crime area today, and the pump shut off at $30. when i asked the clerk why, she said the owner has purposely done this to his machines when you pay with cc at the pump, to prevent fraud. wtf? she said i could continue the fillup by giving her the card personally, but i didn't have time.

 

So don't count this as a refill. If you refill it (a normal full refill) next time, just add the 2 fillups together for your gallons used, and add the two miles driven. Then do the division. That way, you're seeing true MPG comparisons on every tank-fill, which is THE way.

 

tank 14 totals:
421 mi @ 44.3mpg
refilled today 12.0gal @ $3.20/gal (costco).
7430 total miles.
first oil change tomorrow.

 

I think your method of caluclating your fuel economy is flawed, if I understand that you keep reseting your trip and somehow putting them all together with a formula

 

ok, i'll bite. how so?

 

4-5-07: first oil change at 7442 mi.
tank 15:
525mi @ 43.3mpg
refilled today 12gal @ $3.30/gal.
7955 total miles.