Diesel engine oil in 5VZ-FE

[VZJ9598 Lurker Find all posts View Profile Close VZJ9598]

Hi everyone, I have a 3.4 V6 with 347,000kms on it.

Was wondering if running Mobil delvac 1300 or Mobil delvac 1 both exceeding API-sg,sh for this engine, would be safe to use?

Can get multi grade diesel oils cheap through work.

Any thoughts?

Cheers

[carco Advanced Member Find all posts View Profile Close carco]

Maybe oils have changed but way, way back I tried diesel oil in the old Holden. Same reason as you, we used diesel oil in the trucks.
What a disaster, the detergents stripped away any carbon seal and she blew smoke like a steam train from then on, drinking oil as fast as I could add it.
If you had a new engine with nice close tolerances it would be fine, but not for me in an older engine.