- Joined
- Jan 19, 2021
- Messages
- 3,125
- Location
- Rosemary Farm, Grass Valley Ca
- RV Year
- 2016
- RV Make
- Newmar
- RV Model
- Ventana 3427
- RV Length
- 35
- Chassis
- Freightliner XCR
- Engine
- 6.7 ISB 360/800
- TOW/TOAD
- 2001 Jeep Wrangler
- Fulltimer
- No
I just serviced mine and used Delo SDE 15w-40 which is a CK-4 oil and I think is semi synthetic, but I used it because it was on the shelf. Had Rotella too so it was a toss up, The unit just calls for 15w-40 and since it doesnt have a DOC/DPF I dont think it matters beyond that. No need for ultra low sulfur or post 2017 greenie happiness (ISO Clean, GHG17...) or whatever.