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Old 10-18-2011, 11:11 AM   #11 (permalink)
beatr911
Master EcoModder
 
Join Date: Feb 2008
Location: West Coast, USA
Posts: 516

B2300 - '96 Mazda B2300 SE

Focus - '05 Ford Focus ST

The red car - '00 Honda Insight
Thanks: 6
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Please gauge your MPG changes over at least two tanks. With the amount of change you are likely to see, other factors (such as the tailwind) can impact your numbers and not give you true results.

Maybe an undertray would give better results and your girlfriend would love you even more.

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