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      06-20-2023, 11:43 AM   #6
pbonsalb
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Drives: 18 F90 M5, 99 E36 M3 Turbo
Join Date: Feb 2011
Location: New England

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((5x87)+(10x93))/15=91 so the octane should not be a problem unless your boost is beyond stock. Even then 91 probably supports a little more boost.

I would think fatal rod knock would not come and go. I would investigate the pulleys as suggested above.

Last edited by pbonsalb; 06-20-2023 at 06:44 PM..
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