CM870 Winter Oil

[FarmerMB]

Over the years i have tried to find the best solution for oils in extreme cold like you. Hands down the best combo i found is 0w40 plus a espar/websto with the exhaust pointed toward the side of the oil pan, with the truck sheltered somehow to reduce your heat loss generated by whatever engine heater your using. Use some commonsense not to get the heater exhaust pipe close, or if its covered in oil it could be a fire hazard... (im guessing you know this) lol! Im not preaching synthetic is the only oil to use but i believe it does help vs 15w40.

The truth is even 0w40 is like glue at those temps. You just have to get some heat into the oil somehow to make a difference. This is were i like the espar/websto vs the plug in block heater. They have the ability to generate much more BTU and generally heat more of the block. Increasing the transfer of heat into the oil, and the heater exhaust is bonus.

The negatives are probably obvious. Syn oil is expensive (I personalty don't extend change intervals.) But being for farm use i don't put the miles on like most people do.

Diesel heaters are a cost and will require some up keep. Ive also typically noticed at operating temp you will loose a small amount of oil pressure not just on the CM870 but Detroit series 60 and John Deere as well. I cant speak to switching back and forth from Dino to syn?? Hope this helps.