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Old 12-05-2019, 03:50 PM   #14
Scooby Newbie
Member#: 504042
Join Date: Jul 2019
Location: SOCAL - Sothern Cali
2018 WRX


Originally Posted by GlarryHoodDIT View Post
FWIW the pump probably already has E10 as the fuel, so putting 3 gal of E85 is putting you closer to E25 than E10. Watch your 1) fuel trims, though those will probably decrease, and 2) watch your AFR, make sure it doesnt get too lean. Ethanol takes more fuel to reach the same stoich, so your AFR will lean out the more ethanol you use because you are scaled for a different fuel. Stick with 1.5 gal, if that doesnt work consider getting a custom E Tune.
Appreciated your feedback. I will stick to 1.5 gal.

I was told keeping 14 while driving is good and it is 14.xx most of the time. My max is varies sometimes hit 25 depends on the acel.
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