After searching the threads, owners manual and calling three different dealerships, I've confused the hell out of myself. So basically I just want to know what is the best thing to do for my new '19 Grand Cherokee V6 in regards to first oil change. I'm a Marine away from home and my wife has been driving it basically around town. It now has 4500k give or take and we got it back in March brand new when I was home. Oil life is showing 39% as of this am she tells me. I will be home in a week and we're planning a 1000k road trip so I would feel better changing the oil in it before we head out. Reading about how a new engine needing to break in etc. and to change the oil sooner than later due to metal pieces from new engine parts possibly doing damage AND to wait until AFTER first oil change to use a "fully synthetic" oil has got me paranoid as hell. This is my first new "Jeep" after all.
So all of you Grand Cherokee V6 owners/experts out there, what are your recommendations for the type and exact brand name of oil should I be using? Pennzoil? Mobil 1? Manual mentions Pennzoil. Fully synthetic or blended? Pennzoil Gold, Ultra or Ultra Premium? I want to be sure all is good in case of problems so I can show receipt to dealer just in case down the road I did the right thing. OR...just take it to the dealer to handle it and spend twice as much just to let some kid do a half ass job?
Appreciate your feedback!
**UPDATE I got home Monday night and was able to change the oil and filter on the Jeep. As one of you mentioned, I was overthinking this whole simple process so I did what the OM stated..I used 0W-20 Pennzoil Platinum and a Mopar MO-349 Filter, and a shout out to Oreilly Auto Parts for the military discount! The Jeep comes from the factory with synthetic oil and Chrysler designed the engine to use it so who am I to second guess that? If the rings don't properly seat etc. etc. because of synthetic oil from the get go well then that's what their warranty is for.
NOW here's the scary part..as I mentioned the oil life indicator said 39% of oil life left. The oil looked like "crude oil" it was so dark BLACK. It also had a rank, burnt odor as well. Then again is this what used synthetic oil smells like? There is NO WAY I could in good conscience, left that oil in the engine for a 1k road trip. Granted the lubricating properties may still be intact but how could oil in that condition properly "clean and absorb heat" etc.? I just warmed up the engine for a few minutes to let the oil get warmed up to drain better so, it wasn't scalding hot or anything like I had just driven it.
At any rate, the Jeep is all good to go now but lesson learned to go by common sense time/mileage instead of that "sophisticated algorithim" oil life monitor system. I will have to say that this was by far the EASIEST oil change I have ever done on a vehicle! So clear and easy access to the filter and drain plug. I did notice however that the drain plug was not tight at all and came loose with barely a turn. Also it did NOT have any kind of washer, crush washer etc. The filter housing was also barely snug as if someone had hand tightened it. I know its plastic and can break easy but man its kind of scary how "loose" these two components actually were. Is this indicative of Chrysler quality?
I did torque them both to the correct spec when I put them both back on however.
I just wanted to update you all and say thanks again to all that commented. I really appreciated ALL your feedback!
I'll leave this post up for a day or two then delete it. Have a good one everybody!