Originally Posted by Swampy
Yes, the oils that the dealers use do not have MS11106 (unless they are using Mobil 1 ESP 5W-30). My understanding that the difference is that the oils that the dealer use have been approved for use by Jeep HQ.
I would still ask Jeep in what regard does the oil not meet spec. If they say MS11106, then I think that you're still screwed, regardless of what the dealers use. If they don't mention MS11106 and point to another oil property, then you need to get the oil blender/supplier involved. But first, ask them in what regard does the oil not meet spec.
Nowhere in the manual or service book is it stated that you must use Mopar oil.
Incidentally, what is the primary use of the vehicle?
I'm in the process of typing up a letter to Jeep outlining our case, thanks for the heads up re MS11106.
As to our vehicle, well we just use it to drive around!! No off road stuff, beach work etc
Will post again on this thread once Jeep has reviewed our case. Not very hopeful though......
Thanks again Swampy!!!