My wife and I are going to be purchasing a new 2015 Jeep Grand Cherokee to celebrate my retirement in the next couple of months. It looks like we'll be getting it with the 5.7 HEMI engine. The last time I bought new vehicles was back in 1991, and I'm still driving both of them. A lot has changed since then.
I'll admit I've never read the specs on the back of an oil bottle in my entire life. After we get this new Jeep, I'll be changing my own oil as always. I'm just wondering what you guys are running in your HEMI's? The new Multi Displacement System, (MDS), is very dependent on the proper weight oil for it to work properly. This is the system that cuts out 4 cylinders under a low load.
I've heard if you run the wrong weight oil, it won't work correctly, and make a lot of ticking noise in the process. Selecting the correct weight is not an issue. But I'm wondering if a specific brand works best, or better than others? I was leaning toward Mobil 1, but I'd like to hear what you guys are having success with, who have been running these engines for a while? Thanks in advance.
I'll admit I've never read the specs on the back of an oil bottle in my entire life. After we get this new Jeep, I'll be changing my own oil as always. I'm just wondering what you guys are running in your HEMI's? The new Multi Displacement System, (MDS), is very dependent on the proper weight oil for it to work properly. This is the system that cuts out 4 cylinders under a low load.
I've heard if you run the wrong weight oil, it won't work correctly, and make a lot of ticking noise in the process. Selecting the correct weight is not an issue. But I'm wondering if a specific brand works best, or better than others? I was leaning toward Mobil 1, but I'd like to hear what you guys are having success with, who have been running these engines for a while? Thanks in advance.
Last edited: