12-05-2019, 09:11 AM | #1 |
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Bootmod3 stage 2
Just purchased a 2013 bmw m5 with tune, intakes, and downpipes. Currently working on getting access to the tune which I am guessing is running a tune for 93 OCT.
Where I live I only have access to 91 and E85..... will it be ok to run the 93 OCT map if I do 91 and a small mix of E85 while I am working on gaining access? |
12-05-2019, 01:07 PM | #2 | |
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12-12-2019, 10:46 PM | #6 |
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Yeah, not worth a few extra HP, IMO. I know plenty of folks that use 93 pump gas on a 91 tune just to be safe. If anything, a good quality octane booster would be a safer bet.
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