this winter blend makes the mpg drop quite a bit!...on the highway im pulling off 850-900km/tank empty...so thats like 550miles to the tank...what are u guys getting ? are my numbers about right?...i guess thats about 15.7mpg...ridiculous i think

 

Dropped 2 mpg down to 11.5.

 

yep ur near my neck of the woods...but i giess id rather have the blend than frozen lines ...summers i squeeze out 20mpg

 

Been around 17 in town. 21+ in the summer (running empty, of course)

 

what are u getting lately?

 

I've gotten as good as 20 this winter, but have been hanging around 18, give or take...lots of in town and below 60mph stuff. I run a good shot of Power Service in every tank and generally flog the snot out of the old girl at least, well, 5-6 times a day I think my winter mileage suffers more to incomplete combustion due to low temps than anything else. I actually pick up mileage when towing light vs running empty in the winter.

 

I dropped about 2mpg overall...

 

Can't blame it all on the fuel.
Colder weather brings longer idle times, longer time for the engine to come up to optimum operating temperature, lower tire pressures and aerodynamic resistance increases the colder it gets.
This paper, page 27, has a very good section on how cold weather effects mpgs
http://www.everytime.cummins.com/eve...Whitepaper.pdf

 

I've been getting about 17 mpg, mixed driving so far this winter; I was averaging 20- 22 mpg last summer. Infidel makes a few good points, my truck idles much more and I use 4 wheel dive every day.

 

I also drop about 2mpgs.

 

I think it has more to do with the ULSD than the winter blend.

 

I drive the same old 600+ mile a week commute week after week in the summer/winter on the same road and my mpgs still run 21.8 to 22.3 tank after tank. All pencil figures. My mpgs drop about one on average in the summer.
JIM

 

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Very true!

In the really cold weather, i occasionaly get under 10 mpg!

 

Try using a winter cover and close off all grille openings and the two bumper openings. The small round openings should be enough to cool the engine it does on my cummins. I have a sport so the round holes were open because the fog lights to the left in the bumper just watch your gauges.

 

its good to know im in the company of others with this