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      Yesterday, 04:11 PM   #1

Drives: 2013 135I
Join Date: Mar 2017
Location: Huntington Beach, CA

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JB4 fuel/map question

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Looking for educated opinions: please only comment if you have real time data or experiences! I have a 2013 135i N55 with Jb4/BMS intake/ CP/ DP.... I am running map 5 with about 35% E85/91 blend. Car runs great, a bit inconsistent but feels solid. My question is this. Anyone run 100oct / map 5? If so was it any better or stronger than E85/91 blend? I know E85 is way less cost but let's not factor in price. I have a local 100oct Sunoco pump at $9.50 a gal and don't mind paying the price if it's any better. Any opinion? Also, for map 7, would MS109 be a good choice? Thanks
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