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Unread 12-08-2015, 09:28 AM   #1
pwhahn4
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2014 WK 
 
Join Date: Aug 2015
Location: Atlanta, GA
Posts: 2
Eco Diesel MPG Dropping

Purchased my 2014 Eco Diesel WK2 about 2 months ago and love it. The only problem is over the last month I have seen a steady decrease in my MPG. When I first got it I was getting about 34 MPG on the highway traveling to football games and back, and around 27 in the city. Now I am getting around 22/23 in mixed driving both on the highway and in the city. Would really like to get it back up to 30 MPG. Does anyone happen to know what may be happening or have happened?

When I was traveling I was filling up at truck stops on the interstate and now I am filling up in the city. Not sure if the quality of diesel at these 2 places has anything to do with the MPG or not?

Thanks for all the help!

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Unread 12-09-2015, 10:56 AM   #2
TypeRod
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Join Date: Apr 2014
Location: Bristow, VA
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It could possibly be the diesel fuel that you are buying, some states or cities, will use a "winter" diesel, during winter time which helps to prevent diesel fuel from not gelling up at cold temps. In the spring/summertime they will revert back to the normal diesel blend, and then you should see your MPG go back up. All this is assuming nothing else is wrong with the engine. Hope that sheds some light on the situation.
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Unread 12-09-2015, 11:05 AM   #3
pwhahn4
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I suspected as much. Thanks for the insight.
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Unread 12-09-2015, 11:43 AM   #4
asorr1
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Quote:
Originally Posted by TypeRod View Post
It could possibly be the diesel fuel that you are buying, some states or cities, will use a "winter" diesel, during winter time which helps to prevent diesel fuel from not gelling up at cold temps. In the spring/summertime they will revert back to the normal diesel blend, and then you should see your MPG go back up. All this is assuming nothing else is wrong with the engine. Hope that sheds some light on the situation.
Yup, this. Winter blend is murder sometimes. I have a the V6 gasser and I have dropped about 2/3mpg with the winter blends coming in. I also notice that I generally get worse mpg in the winter/colder months, but I think that's normal.
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Unread 12-10-2015, 03:51 PM   #5
TypeRod
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Quote:
Originally Posted by pwhahn4 View Post
I suspected as much. Thanks for the insight.
No worries!

Quote:
Originally Posted by asorr1 View Post
Yup, this. Winter blend is murder sometimes. I have a the V6 gasser and I have dropped about 2/3mpg with the winter blends coming in. I also notice that I generally get worse mpg in the winter/colder months, but I think that's normal.
Ya know I never really paid attention to gas mileage during the winter on my other vehicles, is there a winter blend for gasoline? Let me do some google research! lol!
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