How long can Quaker State HM 10W-30 stay in the sump for.

[Rick]

I'm just trying to figure, that with the uoa's and the duration of the oci that people have gone with HM oils. What would be my safest oci with this oil be?

 

[Patman]

You could <b>probably</b> push it to 8000km in your Sunbird but without a UOA it's hard to say with any certainty.

 

[Rick]

Is there anyway to find out as to how much G3 to G2 there is in the oil?