I use Mobile 1 Extended Performance Synthetic. Supposed to be good for 25k kilometers but I have/will continue to change mine every 10k.
Basically start it up at end of winter slumber and change it then. Only plan on 10k per year
It is pricey, but I buy it on sale when the sales pop up.
Last edited by Hwyman1971; 03-07-2019 at 03:26 PM.
Reason: additional info