Pentastar 3.6 Oil Change Interval? Infrequently Driven, not Short Trip

[GMBoy]

Thanks for the thoughts guys! I'm using Pennzoil Platinum 0W20, so yes a high quality synthetic. I am contemplating switching to a 0W30 or 5W30 just for the sake of simplifying my oil stash as I have 4 other vehicles to maintain. The vehicle is 2015 so well out of warranty.

I would commonize your oil to a 0 or 5w/30 for sure. I use 5w/30 in my 3.6 Jeep GC and Hemi 5.7 RAM....both of which call for 20wt oil. I feel you are better with the 30wt oil. My other vehicles use 5w/30 so it's easy for me - all jugs of Mobil 1 5w/30 in the shop lol.

 

[Jimmy_Russells]

I would change it once a year.

My wife drives ours about 15k per year, I usually change it at about 15-20% remaining on the OLM which is about every 7-7.5k or so.

 

[kevperro]

I'd echo once per year with the ST 5W-30. I have the same van and my wife short trips it mixed with some highway work and I go about 7K every 8-months.

 

[OilReport99]

There should be no issue running 5W30 on this engine right? If anything it should make the timing chain last longer.

That’s what a Pentastar Engineer, and member of this board, said before.

https://bobistheoilguy.com/forums/threads/626-000-mile-pentastar-teardown.329423/#post-5474366