- Joined
- Mar 25, 2023
- Messages
- 3
Bought a used truck a couple years ago and finally decided to pull the service records from Carfax. Found out relatively recently that it had it's diff. oil changed, and in the front diff. they used Mobil 80W140. No one can really tell me why it was used or the benefits/cons. Question is whether it's safe for the next service to switch to the recommended 75W90. It has 270,000KM and it's a 2008 Ram 3500 6.7.
What are your thoughts on this?
What are your thoughts on this?