Mercury 858058K01 80W90 Premium Gear Lube

Mercury 858058K01 80W90 Premium Gear Lube - Quart

This OEM Mercury gear lube provides outstanding corrosion protection and lubrication to your marine gear case. If water enters your system, this lube uses advanced emulsifiers to prevent foaming and protect your gears.

Mercury 80W90 Premium Gear Lube FAQ

How much gear lube does my engine need?

It varies model to model, check out our Mercury Gear Lube Capacity Guide for more information and capacity charts!

Features

• Formulated to protect against corrosion and excessive gear wear
• Recommended for outboards and jet pumps below 75 HP
• Advanced emulsifiers provide protection even if water enters gear housing
• 80W-90 marine-grade lubricant
• Produced to Mercury Marine OEM standards

Application Info

• For use in all outboard lower units and jet pumps below 75HP. NOT for use with outboards with electric shift gear cases.

Mercury recommends that your gear lube be changed after 100 hours of operation or at least one a year before storing it for the winter.

Frequently Asked Questions

What is Mercury 858058K01 80W90 Premium Gear Lube used for?

Mercury 858058K01 80W90 Premium Gear Lube is an OEM marine-grade lubricant formulated to protect against corrosion and excessive gear wear. It is intended for use in all outboard lower units and jet pumps below 75 HP, but it is not designed for outboards with electric shift gear cases.

What type of gear cases can use Mercury 858058K01 80W90 Premium Gear Lube?

This 80W-90 gear lube is specified for all outboard lower units and jet pumps below 75 HP. Do not use it with outboards equipped with electric shift gear cases. Verify your equipment's application before purchasing or servicing the gear case.

How does Mercury 80W90 Premium Gear Lube protect the gear case if water enters?

Mercury 858058K01 uses advanced emulsifiers to provide protection if water enters the gear housing. The formulation is designed to help prevent foaming while continuing to protect the gears, along with providing corrosion protection and lubrication during operation.

How often should Mercury 858058K01 gear lube be changed?

Mercury recommends changing the gear lube after 100 hours of operation or at least once a year. For winterization, the gear lube should be changed before storing the equipment for the winter, following Mercury's maintenance recommendation.

How much Mercury 858058K01 gear lube does my engine or lower unit need?

Gear lube capacity varies by engine model, so the required quantity cannot be determined from this product description alone. Check the applicable Mercury gear lube capacity information and your equipment documentation to determine the correct capacity before servicing the lower unit or jet pump.

What size container is Mercury 858058K01 80W90 Premium Gear Lube?

Mercury 858058K01 80W90 Premium Gear Lube is supplied in a quart container. It is an 80W-90 marine-grade lubricant produced to Mercury Marine OEM standards for the specified outboard lower unit and jet pump applications.

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