FAQ ABOUT Mercruiser

QUESTION:
How often should coolant be changed on engines with closed cooling?

ANSWER:
Every 5 years.

For optimum performance and maximum protection use Mercury /Quicksilver Extended Life Coolant / Antifreeze.

Mercruiser outdrive parts years 1970-1983

QUESTION:
The paint on the top of my sterndrive is dull and seems to have some type of deposit adhering to it. How can I make it look nice again?

ANSWER:
The dullness comes from mineral deposits in the water. When the boat is on plane, the top portion of the sterndrive is out of the water. As the water evaporates from the top of the sterndrive, it leaves behind mineral deposits. You can remove them by using a liquid cleaner for bathroom tub and tile, followed by a coat of wax to help protect the surface.

QUESTION:
Is it better to change my engine oil/gear lube at the beginning or end of the season?

ANSWER:
It is better to change the oil and gear lube at the end of the season, prior to storage. Lubricants naturally accumulate moisture, combustion by-products, and other contaminants during use. It can be detrimental to store an engine or drive with large amounts of these contaminants present.

QUESTION:
What kind of spare parts should I carry on my boat for my MerCruiser?

ANSWER:
Some suggested items would include a floating prop wrench, a spare prop and attaching hardware, spark plugs, belt(s), oil, power trim and steering fluid, High Performance gear lube, water separating fuel filter, and appropriate fuses.

QUESTION:
What type of fluid should I use in my power trim system?

ANSWER:
Mercury/Quicksilver Power Trim and Steering Fluid – part # 92-858074K01

QUESTION:
How often should spark plugs be changed?

ANSWER:
Every 300 hours or 3 years, whichever comes first.

QUESTION:
Should I use Premium Blend or High Performance gear lube in my sterndrive?

ANSWER:
Mercury High Performance gear lube is recommended for use in all sterndrives.

QUESTION:
How often should my seawater pump impeller be serviced?

ANSWER:
Every 300 hours or 3 years, whichever comes first.

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