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Old 09-30-2013, 11:06 AM   #4871
nubsub
Scooby Specialist
 
Member#: 313575
Join Date: Mar 2012
Location: SF Bay Area, CA
Vehicle:
2012 Impreza 2.0i HB

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Quote:
Originally Posted by hemophilic View Post
https://www.fuelly.com/driver/hemophilic/impreza

28.9 mpg with 89 octane. Filled up one more time with 89 to see if the trend can continue.
this is great info. i await your results, but that looks promising and maybe it's something i can try.

i had never thought going to 89 with E10 would improve things over 87E10.

your driving looks similar to mine (26-28mph average on a typical tank which i usually guess-stimate at around 75-80% city in my suburbia type of driving -- hard to pinpoint though as i know some of my stretches of freeway are 1-3 miles which basically doesn't mean highway since so much fuel is spent accelerating up to 65-70 and then i'm back to the brakes and city driving shortly after)

anyway, i think i may have to try this out. it seems you are getting 6% increase in mileage?

that's not bad if it's only 10-15cents more per gallon.
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