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Old 08-03-2010, 09:46 PM   #1 (permalink)
Danncomm
Drive lots knows little
 
Join Date: Apr 2010
Location: Iowa
Posts: 62

blue sipper - '06 Honda Insight
90 day: 85.96 mpg (US)

BEAST - '88 Ford F250 Lariet
90 day: 24.82 mpg (US)
Thanks: 1
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Gasahol Questions

I have noticed something over the last few fills. For the first couple of days after filling, I find that I have more power and get better mileage, and then afterwards power and mileage start to drop off. Today while driving home I was easily able to get 98mpg but on same trip yesterday with the same general conditions had trouble making 92mpg. I also maintained a higher speed today than I was able to maintain yesterday.

I was wondering if maybe the alcohol is evaporating or if the alcohol is absorbing moisture out of the air and causing the loss of power and mileage. Does anyone else have any ideas on what could be happening. The weather here has been in mid 80s to low 90s with high humidity going up to 100% at night when the temps drop and lots of rain for the past few weeks.

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