Looking For Oil recomendation
#11
For a stock Merc setup I would just run the Merc synthetic 15W40 as others have said. If you can find another brand of synthetic with similar weight for less, then that should be fine as well.
I used to run the M1 15W50, but it has been hard to find around our local WalMarts.
I used to run the M1 15W50, but it has been hard to find around our local WalMarts.