The new 2020+ Ram Ecodiesel and Jeep Wrangler Ecodiesel require the new MS-12991 specification 5w40 weight oil. IDParts stocks a wide variety of oils that carry the MS-12991 approval. See our full list of MS-12991 approved oils here.
In addition, the IDParts 2020+ Ram Ecodiesel Oil Change Kits and Service kits and Wrangler Ecodiesel Oil Change Kits and Service Kits include MS-12991 approved oil as well. Even better, you can customize these kits with whichever approved oil you prefer!