-
Steel Soldiers now has a few new forums, read more about it at: New Munitions Forums!
Oil types M939A1
- Thread starter jeepcato
- Start date
Steelreaper80
Active member
- 229
- 96
- 28
- Location
- Indianapolis IN
I run marathon Elite 15W40 conventional oil in the truck. I get it from my fuel supplier. Great stuff and it is only about $50 for 5 gallons. I change the oil every 10,000 miles as per the Cummins manual.
I spoke extensively with my fuel supplier and they have spoken to the actual chemist of Shell. The Marathon is basically a clone of the Rotella. There is absolutely no wear benefit from running conventional oil vs synthetic. The rear benefit is extended oil drain intervals. I change oil once a year. I only put about 7-10K on the truck a year so I just change it. Hope this helps.
I spoke extensively with my fuel supplier and they have spoken to the actual chemist of Shell. The Marathon is basically a clone of the Rotella. There is absolutely no wear benefit from running conventional oil vs synthetic. The rear benefit is extended oil drain intervals. I change oil once a year. I only put about 7-10K on the truck a year so I just change it. Hope this helps.