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Old 05-07-2009, 07:38 PM   #9 (permalink)
mhmitszach
EcoModding Apprentice
 
Join Date: Mar 2008
Location: indiana
Posts: 233

Iwishthiswasamanual - '98 Ford Escort ZX2
90 day: 32.95 mpg (US)
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Quote:
Originally Posted by tasdrouille View Post
On my personal spreadsheet I added a formula to see is how much $ I saved vs driving an other vehicle. Basically it takes my mpg and estimated %city driving for the tank (and fuel cost per gal since it's a diesel and I compare to a gasser) and estimate how much fuel I would have used on a, say 24 mpg city / 35 mpg highway car to compute the savings. So that can be useful to track how much you are saving vs your other or past vehicles.
Let's see it!


Can someone help with math? I really don't feel like setting up some long drawn out problem when I'm sure there is a simple computer calculation.

How can I figure out average cost of gallon when I paid 1 gallon at a different rate? For example, 1 gallon at 4.39 and 10.25 gallons at 3.99.
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