Black1990jeep
NAXJA Forum User
- Location
- california
For the Inline Six motor, since she is a flat lifter pushrod type, is a higher zinc,,ie zddp rich , "classic" type oil recommended, today's standard oils are very low in that additive.
In my alternate being, my old air cooled VW is told to be always run with the high zinc specialty oils, because it being flat lifer pushrod type.
What's the story on the XJ inline six?
As to why not run high zinc oil anyway, it can't hurt right? supposedly if that zinc rich oil makes it past rings and/or valve guides it can poison at catalytic converter, ruining it. That is why high zinc oil is being phased out on new cars, along with new valve train designs not requiring as much zinc. In my old VW, it is over six decades old, it has no catalyst.
Thanks!
In my alternate being, my old air cooled VW is told to be always run with the high zinc specialty oils, because it being flat lifer pushrod type.
What's the story on the XJ inline six?
As to why not run high zinc oil anyway, it can't hurt right? supposedly if that zinc rich oil makes it past rings and/or valve guides it can poison at catalytic converter, ruining it. That is why high zinc oil is being phased out on new cars, along with new valve train designs not requiring as much zinc. In my old VW, it is over six decades old, it has no catalyst.
Thanks!