Synthetic oil on 2-stroke question
I have a Mercury 20HP 2-stroke and I have been using the standard 2-stroke
motor oil bought from walmart. Is it worthy to upgrade to 2-stoke synthetic
motor oil. If so, what brand do u recommend? and what is the procedure? do I
have to engine flush it (just like car) before switching to synthetic?
Thanks for help
Boating Newbie
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