North Liberty and South Bend, Indiana | Depends on the vehicle and how prone they are to timing chain issues. But in a GM small block or LS I would not hesitate going 20k with that oil but not sure about that filter. I personally run 20k with Amsoil in two 6.2l GM's, a Ford 3.5l, and two 6.6l Duramax's. Plenty of miles on them all to determine that most likely I will not have any issues due to oil change interval. |
Oil change interval
