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Old 12-28-2012, 01:19 PM   #29
Black94Snake
Scooby Specialist
 
Member#: 274499
Join Date: Feb 2011
Chapter/Region: NESIC
Location: RI
Vehicle:
2007 CGM VF'd WRX
12.70 @ 108.4mph

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I would lean more towards the winter blend fuels likely having a lower ethanol content than the summer fuels, due to ethanols inability to burn correctly at low temperatures.

Look at how many E85 guys convert back to 93 octane in the winter...

It would also explain why I've been seeing MORE knock since the winter fuels really kicked in!
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