it can depend on viscosity and outside temps, also if you idle alot in traffic.
If you are running 0w-40 like the manual says and sit in traffic or are close to change time or even run it very hard it will break down sooner therefore read lower.
Try going to 5w-30 and see if there is a change, also one thing to consider, what type oil filter is used, there are alot of good ones out there, but some flow easier than others. Try the mobil brand filter or the factory mopar filter and see if there is any changes.
they say you should change oil every three thousand, but as hard as some of us do, it probably should be done at 2000.
But do us a favor if you try the 5w-30 and the factory filter let us know if it works.
you could go to 20w-50 but its super thick, I think the most I would go is around 15w-40.
good luck bro.
