- Joined
- Aug 3, 2023
- Messages
- 5
I just picked up a 2023 6.7 Powerstroke diesel and am trying to learn as much as possible to keep this engine a long, long time. I live in a northern state where temperatures below 0F are common in winter, but it's exceptionally rare to see temperatures below -20F. The user manual states that 5W-40 oil should be used when the lowest temperature you see is -20F.
Assume both oils cost the same or assume that I don't care how much they cost, is there a reason why I shouldn't just use 0W-40 and never worry about how cold it is? Is there a reason why someone in a warmer climate should not choose 0W oil (again, aside from cost)? My understanding is that 0W would help reduce wear during initial startup even if it's not freezing outside because it's the same viscosity it would be at operating temperature.
Assume both oils cost the same or assume that I don't care how much they cost, is there a reason why I shouldn't just use 0W-40 and never worry about how cold it is? Is there a reason why someone in a warmer climate should not choose 0W oil (again, aside from cost)? My understanding is that 0W would help reduce wear during initial startup even if it's not freezing outside because it's the same viscosity it would be at operating temperature.