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Old 06-23-2012, 04:56 PM   #7
Topless
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Join Date: Nov 2006
Location: Cucamonga CA
Posts: 3,687
Garage
Quote:
Originally Posted by bar10dah View Post
How do you know you used two gallons? Just by the fuel gauge? The fuel gauge is a best guess. Although, if you noticed the needle moved that much (about 2X) when it usually doesn't, could be something there.

Keep driving it until 1/2 to 1/4 tank, then refill and calculate the fuel consumption by hand?
+1
The only way to be sure is to divide miles driven by actual gallons used. Our gauges are flaky (to be polite).
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