changing the oil this week, i think it calls for 30wt? but i plan on using synthetic can i use a multi wt syn? or should i order single wt syn? (yes they make 30wt syn)
This crankcase oil recommendation supersedes all previously printed crankcase oil recommendations for MerCruiser gasoline engines. The reason for this change is to include the newer engine oils that are now available in the recommendation.
If you don't want to follow what they suggest, it won't really matter. There's very few, if any marine engines that ever fail due to brand or type of oil.
They usually quit or fail from poor (or no) maintenance.
)
