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      10-06-2012, 01:58 AM   #3
smmmurf
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Drives: 2009 M3 Sedan 6MT
Join Date: Feb 2008
Location: Pleasanton, CA

Posts: 2,048
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yes, it will improve performance. not dramatically but it will. you already have 93. the biggest jump is from 91-96. 93 to 96 blend is not as big.

there's a huge difference on california 91 octane vs. half 100/half 91... low end torque improves a lot, as does smoothness when first starting off on a drive...
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