One of the most important steps in extending the trouble-free life of your Mercury, Mariner or MerCruiser engine is to be sure that it has been properly serviced and prepared for cold weather during the winter. Water left in the engine can cause major damage to the engine block and the manifold system.

We strongly recommend that your Mercury engine is winterised by an authorised Mercury dealer. Damage caused by non-winterisation of your Mercury engine will result in termination of your limited factory warranty.