The need for marine engines to run on a clean source of fresh water is common. Saltwater boaters should regularly flush their engines with fresh water to stave off internal corrosion. Also, the ...

Anyone remotely familiar with diesel engines understands the importance of oil and coolant, as they are the lifeblood of the powerplant. Oil lubricates, water cools—and one without the other typically ...

An open-loop cooling system, also called raw water cooling, draws water directly from the body of water the boat is floating in, whether it's saltwater or freshwater. That water is pulled through a ...

CARS.COM — When is the right time to change your engine coolant? For some vehicles, you’re advised to change the coolant every 30,000 miles. For others, changing it isn’t even on the maintenance ...