Yep, sounds like in your case as your not overheating there might just be a problem with the heater controls? Wondering how the original poster got on
Looking forward to getting myself a wj after KOH. I will be looking for only a 03 or 04 4.7. Hopefully a Laredo.
Il ask on Monday as see why there running it,
I would question the dealer personally.
Not on the label on the drum on their receipt when they have the service Done some have noticed 5w30 was used instead