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      01-23-2013, 09:30 AM   #1
Second Lieutenant

Drives: 2009 BMW 335d
Join Date: Nov 2012
Location: Connecticut, USA

iTrader: (0)

Cold Weather Start

With the cold weather in New England during the winter, is there any additive that I can add to the diesel fuel to prevent it from freezing in the fuel lines? I know that it might not freeze, but turn into a gel like substance.

I was told by BMW SR not to add cetane boost or any diesel additive because it will void my warranty, but how about cold weather additive?

I haven't had any issues with starting my 335d in cold weather because I always keep the car garaged where the temp is around 45 degrees. But when I go to work, it sits outside for around 9 hours in 10-20 degree weather.