- Joined
- Jul 9, 2023
- Messages
- 15
Hello, all!
I have recently switched all of my diesel equipment over to Mobil Delvac Extreme 15w40 synthetic.
Now even after several hours of running, the oil looks clean. It isn’t turning black- I can still see through the oil to the dipstick. I do my oil changes quite early based on manufacturer recommendations, but in all of my experiences diesel engines turn oil black almost immediately. Should I be concerned? Any ideas? Thank you!
I have recently switched all of my diesel equipment over to Mobil Delvac Extreme 15w40 synthetic.
Now even after several hours of running, the oil looks clean. It isn’t turning black- I can still see through the oil to the dipstick. I do my oil changes quite early based on manufacturer recommendations, but in all of my experiences diesel engines turn oil black almost immediately. Should I be concerned? Any ideas? Thank you!