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Old 08-15-2009, 08:22 AM
dcarrb dcarrb is offline
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Re: Quick Question: Gas Tank Size - MPG

Quote:
Originally Posted by Sean486 View Post
Just wondering how many gallons the tank holds so that I can calculate my MPGs. I set the Odometer at my last fill up, but can't remember how many gallons it took to fill it.
Tank capacity is irrelevant. Do this:

Fill the tank 'til it clicks off. Reset the trip odometer. Drive.

When you fill the tank again, write down the gallons consumed since your last fill-up. Divide the number of miles you've driven by the gallons used to determine your fuel mileage.

This is the only way to accurately calculate fuel economy.

dcb
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