Rain and MPG??

[DKupec]

My mileage has been pretty consistant since I bought my truck in October, about 13. 8 MPG (hand calcualted). I live in Seattle and this winter seemed to be a mild one in my opinion and it didn't seem to be as wet as I have remembered.



We had a couple nice weeks of sunshine and high 50's about a month ago and my mileage seemed to be on it's was up which made me happy. It had climbed up close to 15MPG



Well, last week the typical Seattle rain returned and boy did my mileage fall. It was down to 12. 5MPG. The only thing that I can figure is that the wet weather and all of the water spray off the road is really cooling the DPF and causing the computer to dump a lot more fuel into the system to keep it hot.



Has anyone else noticed this?

 

[jraker]

Move to the dry sh*ties I mean Tri-Cities or anywhere in Eastern WA.

 

[testraub]

Besides hitting air, your now hitting water. Gotta think of that too

 

[johncameron]

The rolling resistence goes way up on your tires also.

 

[LRutigliano]

Down here in the 2nd wettest city of the US (Seattle is 1st)... traffic slows to a painfully turtle pace whenever it rains. (I blame it on all of the Southern Californians moving here) :-laf



Slow traffic = terrible fuel mileage.

 

[DSass]

My mileage has been pretty consistant since I bought my truck in October, about 13. 8 MPG (hand calcualted). I live in Seattle and this winter seemed to be a mild one in my opinion and it didn't seem to be as wet as I have remembered.



We had a couple nice weeks of sunshine and high 50's about a month ago and my mileage seemed to be on it's was up which made me happy. It had climbed up close to 15MPG



Well, last week the typical Seattle rain returned and boy did my mileage fall. It was down to 12. 5MPG. The only thing that I can figure is that the wet weather and all of the water spray off the road is really cooling the DPF and causing the computer to dump a lot more fuel into the system to keep it hot.



Has anyone else noticed this?

I have less that 6K miles now and just towed my 5th whl trlr from Seattle to Redding CA. I was hoping for around 13mpg, but no! By the time I got here it was 9. 2mpg. Pretty bad! My first thought that the truck may need the G30 flash and O2 sensor so I called the local Dodge dealer here and he looked up my VIN and said my truck must have been built after the cutoff and that his experience and chat with owners says that the magic mileage seems to be 15K for the 6. 7 to see better mileage and it does go up after that. We'll see, but at todays prices for fuel, it may be a long time before my truck sees that mileage.