Posted by Don in Missouri [97.64.167.2] on Wednesday, November 12, 2014 at 14:33:58 :
In Reply to: Re: OT Milage difference between summer and winter diesel posted by Mike Hernke (MO) [32.148.49.227] on Wednesday, November 12, 2014 at 07:37:46 :
I think Mike has the best answer here. The energy density of #1 and #2 diesel fuel is slightly different. For most of us, that differential is negligible, and hard to discern from all the other things that affect mileage due to colder air and driver habits.