Brett, you're missing half the point. Synthetics are proven performance enhancers. Switching to synthetics will be like picking up 2-5% more HP.If I was a commercial fisherman and was putting
heavy hours on my outboard, I might use a synthetic oil.
But since I only put a few hours on each month,
regular oil changes with standard 4 stroke oil will do the job.
Pink trucker chick stickers are worth an easy 15hp. The chrome version is worth 25 at least.Remember... the more performance parts companies stickers you put on your motor the more HP it will produce... ;D