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      05-01-2018, 05:37 AM   #20
Guy M5
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Scotland
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Drives: M5 F10 2014 MCB
Join Date: Oct 2017
Location: Scotland

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Quote:
Originally Posted by steeve13m View Post
What I recommend if you are running high boost either JB4 or a tune you should add octane booster on each fillup for safety and power....I use the Lucas octane booster on each fillup of 93 octane.( ~95octane)....
Here in the U.K. our premium pump fuel is 95 octane and super unleaded pump fuel 97/98 octane so not so much of an issue here.

Fuel prices though .... !!!!!!
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