Purchasing a new mercruiser. What is better in salt water, Mercruiser SeaCore System or engine flush kit?
Flushing system is always the "sure" thing to remove and protect from salt water.
I had systems made by Volvo and even Mercruiser stating they have models for "salt" water. Nothing works 100% except the complete flushing the engine and a good exterior washdown when completed with the flushing.
Paul - Woodbridge, VA (but grew up in Rhode Island waters...)