mileage decrease / transmission ?
Last year, my Jeep dealer flushed my transmission, and almost immediately, I noticed about a 10% drop in mileage, longer transmission warmup times, and less "coasting" when getting off the accelerator.
Basically it feels like the transmission fluid is thick (in warm or cold weather, but obviously worse in cold weather)
Today, my 04 Grand Cherokee 4WD 4.7 V8 is in the shop for inspection and 75k service. I asked them to look at the transmission again. They just called and said the only thing they notice is a noise coming from the transfer case and they recommended a flush of that as well.
Does anyone have any other suggestions ?