I'm running to Napa in a bit to pick up an oil filter for my new to me 2019 Ram 1500 hemi. I'll run my usual Supertech full synthetic 5w30 in it. I ran that in my pentastar powered Ram 1500 along with Napa full synthetic and Amazon basics.
I haven't decided how often I want to change the oil on the hemi. I'm thinking 5000-ish miles at the moment. LOL. On the pentastar, I couldn't bring myself go go beyond 6-7K miles. Even at that the oil life monitor would still be at like 30% life left.
I have no idea if 5w30 is better or worse for a modern day Hemi vs the 5w20. Having looked over data where people actually run used oil analysis, they both shear down to about the same in the end.
My 2019 was just purchased as an ex-rental w/ 15K miles on it. It hasn't had but 1, maybe 2 oil changes on it at this point. I'm leaning towards 1.
From what I gather, it’s not so much the weight the oil that makes the 5W-30 better, it’s the supposed fact that the 5W-30 has a lot more molly in it, among a lot more of the other anti-wear additives is why the general consensus of this forum says that 5W-30 is so much better than 5W-20.
Not condemning you at all, but I’m assuming you’re not worried about possible repercussions with your warranty by running that 5W-30 in it instead of the 5W-20?
I’ve got lifetime warranty on mine and even though I’ve been told that I could very easily put 5W-30 in it and just show that I’ve been putting 5W-20 in it being that there’s really not any way for them to verify that you’ve been using the right viscosity of oil but I just figure since it’s got a lifetime warranty, I might as well just put in the required oil weight and call it good.
I may stick with the PUP, but I’m also really interested in that Chrysler-compliant Redline 5W-20 that they have now just because the red bottle Redline is so highly regarded on this forum.
Money’s not an issue when it comes to oil in my truck, even though I do have lifetime warranty because I still would just rather not have to fall victim to the cam and lifter problem that would lead to a new engine in my truck. I’d still rather give it the good stuff even though if anything ever happens to my engine, it’s only gonna cost me about 100 bucks to have it replaced.
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