Keep your engine looking good and safe from corrosion with routine cleaning. A clean engine is an engine you can be proud to show off, and it's also an engine that will continue performing at its peak for longer, particularly if you boat in saltwater environments.
if you have an outboard motor It's best to tilt your outboard up when leaving your boat in the water to prevent marine growth from forming and from corrosion eating away at its metal parts. That being said, there are some instances when you may prefer tilting your outboard down.
On bigger boats and yachts keeping a tidy engine room offers three advantages: It preserves the value of your boat, prevents issues before they start and helps you spot bigger problems faster.” When it's clean, problems are seen. ... You become very in tune with your boat and can also perform vital fluid maintenance.