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Old 09-20-2013, 10:36 PM   #6 (permalink)
Awd180
EcoModding Lurker
 
Join Date: Apr 2013
Location: Nj
Posts: 48

wrx - '02 subaru impreza wrx wagon
90 day: 33.81 mpg (US)

Leg - '05 Subaru Legacy 2.5i
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Quote:
Originally Posted by ChazInMT View Post
That's what I figured, then I freak my self out with this thought.

I get close to 40mpg say, so when I put in the 1 gallon and go 20 miles, I figure I burned about 1/2 gallon of gas. So when I put in 12.3, and add the half gallon I used, that would be 12.8. I didn't use the whole gallon of gas.

Sorry, but when you give an answer here, in order to get it sorted in my over thinking skull, I'm going to need an explanation for the logic of how you arrived at your answer.
Your correct here, though go with your average posted 35.3 mpg so 20miles/35.3 miles/gallon=.57 g then 12.9 g

however the problem is that since you drove farther then the last time you filled up you used more then 12.3g. plus another .57g haha even if you fill up at the same point every time there is always going to be a high tolerance without actively flowing the volume used.
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