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      12-07-2012, 07:15 AM   #23
135i_vs_
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Drives: M5(sold), 135i(sold), 335d
Join Date: Sep 2011
Location: NY

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Quote:
Originally Posted by dzlmoose View Post
Maybe a separate thread should be made where we each state:

Model year
Mileage
Mpg on the car
Avg speed on the car
Carbon build up issue yes or no?

I think those are some of the key factors which are relevant to this issue. If anyone can think of anything to add to this list. Let me know I'll start the thread tomorrow.
I would add brand of fuel and cetane rating.