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      03-29-2018, 02:57 PM   #1374
JerryBMW
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Drives: 2014 bmw 335i
Join Date: Feb 2018
Location: Los angeles

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Quote:
Originally Posted by louielouie View Post
I live in LA, and the 91 octane is causing timing corrections. If I wanted to pump e85 to supplement, will I need to purchase and reflash the e20 map?
I live near LA as well, i used about 3gal of E85 and the rest shit 91oct without a tune and the car runs smoothly. Just recently i did the E85 Tune and it ran even better.