Hi,I'm new to the forum and this may have been posted before, but here goes.
I have the 04.5 3500 with 15k miles. I had been getting lousy mileage as compared to a couple friends with the same truck. To make a long story short. The truck smokes when I accelerate, I took the truck into a Dealer about the mileage and they told me that the fuel filter needed replacing, so I replaced it last Thur. nite, I took the rubber boot off that goes to the cooler and found oil inside. The diesel mechanic said that oil in this location was "normal" and quoted a service bulletin. Does anyone else have this "normal" problem or know anything about it.
Thanks, Will