MPG change with weather

[NDsuperduty]

Does MPG in diesel change quite a bit when it gets cold? I was getting about 17, and since the weather got cold in houston I got around 15 on two different tanks. Is it the weather or should I be worried something is wrong.

 

[BIG JOE]

Not to Worry. The oil companies start making "Winter Blend" #2 ULSC diesel in about October. It's not as Efficient a fuel as strait # 2, so our engines are not as efficient. MPGs go down some.

As long as the 15 (or so) MPG stays the same ? Not to Worry

 

[Buffs F-350]

Its the cold I dont know about your area but New Jersey just started winterizing the fuel.

 

[NDsuperduty]

i figured that was it. My gasoline truck used to chang
when it was winter, but never 2mpg which is why i worried a little.

 

[F350DRW1]

Its that wonderful winter blend.

 

[Wingdog]

Don't forget your warm up time too. Even if you only do it for a few min each time you go somewhere it all adds up.

 

[Zookie400]

if your engine doesnt heat up all the way it takes more fuel to get the same power output as a hot engine.

 

[black_cloud_stroker00]

I read somewhere that 10 minutes of idling is about equal to 25 miles driven.

I have a question, most of the stations that I fill up at, don't advertise whether its #1 or #2 diesel, and the "kid" behind the counter never knows. Is it pretty safe to say that everyone switches to the winter blend.

 

[Buffs F-350]

I read somewhere that 10 minutes of idling is about equal to 25 miles driven.

I have a question, most of the stations that I fill up at, don't advertise whether its #1 or #2 diesel, and the "kid" behind the counter never knows. Is it pretty safe to say that everyone switches to the winter blend.

#1 is kero #2 is everything from usld to heating oil.

 

[JLDickmon]

I keep coming back to the fuel on this thread... http://www.superdutydiesel.com/forums/general-discussion/14319-out-powerstroke-business-rant.html
mine's lost more like five mpg