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Old 03-21-2013, 10:31 PM   #5
Scooby Newbie
Member#: 328998
Join Date: Aug 2012
Chapter/Region: MWSOC
Location: Galesburg, IL
2011 Impreza WRX STI


But when i drove around 70 mph from Illinois to Tennessee it got around 22~24 mpg, that was before my last oil change. I changed oil from whatever was inside to mobil1 5w30 synthetic bc there is no rotella synthetic 5w30 around here and added an axleback muffler delete and voila from 22 to 18, just wondering why.

I get the same mpg with sports mode on that tune and slightly less on sports sharp
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