- Joined
- Jul 14, 2020
- Messages
- 522
Ok, so just hypothetically, would it be ok or a big no no to use 10w30 in my 2017 Frontier with the 4.0 v/6 with 30k on it. Now understand it is stored in my attached garage that never gets below freezing. The manual calls for 5w30, with no stipulation of conventional or synthetic.