Thread: JB4
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      05-15-2021, 07:11 PM   #78
Murf
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Drives: 2021 G80 M3C - Dravit Grey
Join Date: Apr 2011
Location: Florida

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Quote:
Originally Posted by L0st View Post
Dumb question...I've never ran E30 in a vehicle. If I got a jb4 is there anything else I'd need to run E30? I'm assuming if I were to be traveling and E30 is not available I can knock the tune down to E30 octane and be good?
E20-30 should be within parameters of the stock fuel system, anything higher you would need to log and see where your HPFP starts to crash and/or you lean out and get knock.
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