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Marvin K. Mooney
Jan 2, 2008

poop ship
destroyer

Opensourcepirate posted:

There's a couple of factors. One is that winter Diesel fuel has a lot of additives to keep it from gelling up and generally gives you worse power and fuel economy than summer Diesel.


This is the big one. Winter additives are completely different and most stations north of the Mason-Dixon will be stocking it now (probably quite a few south as well). My '11 TDI drops about 5mpg with the winter fuel.

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