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      06-23-2012, 09:25 PM   #19

Drives: 2011 ZCP M3 - 2007 335i crashd
Join Date: Apr 2009
Location: NYC

iTrader: (4)

There is so much confusion on this thread..not sure where gas and octane factor in here..high compression engines such as this needs high octane fuel so thats one point by itself.

Regarding hot weather and performance..yes ofcourse the hotter it gets the less power you air is not as dense with oxygen as cold air is...hence you lose power when its hot..same can be said about altitude..the higher you go the less oxygen dense the air again you will lose power

I can say definitively my car runs way stronger in the colder months.