Mercury – Quicksilver 80W-90 Premium Gear Lube | Marine Lubricant | 8 oz Tube | 802844Q02

Overview

Your lower unit does the hardest work on your boat — keep it protected with Mercury Marine 802844Q02 Quicksilver 80W-90 Premium Gear Lube. This high-performance formula is made for outboards up to 75HP and provides solid protection against wear, corrosion, and heat. It’s built specifically for marine conditions, where moisture and pressure can quickly ruin lesser oils. The 8 oz tube makes filling small gearcases quick and clean, and the additives keep everything coated and lubricated, even if a little water sneaks in.

Key Features

• Purpose: Shields gears and bearings from friction, pitting, and corrosion.
• Formula: 80W-90 marine gear oil, blended for strength under load and temperature swings.
• Protection: Keeps lubricating film intact, even in the presence of water.
• Durability: Won’t foam, shear, or break down under heavy use.
• Ease of Use: Compact 8 oz squeeze tube makes maintenance simple.

Engine & Equipment Compatibility

• Made for Mercury and Mariner outboards below 75HP
• Works in gearcases, lower units, and small marine drivetrains

Performance & Real-World Benefits

The 802844Q02 gear lube gives your lower unit lasting protection where it matters most. It keeps gears running quietly and smoothly by maintaining a strong lubricating film that won’t wash away. Even when moisture or condensation gets into the housing, the oil’s water-handling additives keep it stable and protective.

This lube is built for real boating — long days at high RPMs, shallow-water runs, and rough conditions. It’s reliable, clean, and engineered to help your outboard last for years.

Why Choose Mercury OEM

The Quicksilver 802844Q02 isn’t just any gear oil — it’s the same formula used in Mercury’s own service centers. Unlike off-brand oils, which may lose viscosity or break down when exposed to saltwater, this one is designed specifically for marine stress.

Mercury’s OEM lube has been pressure-tested, salt-tested, and time-tested to protect against corrosion, foaming, and wear. It’s what your outboard was built to run on — reliable, consistent, and proven in the real world.

FAQ

Q1: What engines is this designed for?
For Mercury and Mariner outboards up to 75HP.

Q2: What makes this oil special?
It’s marine-specific 80W-90 with additives that protect against water and corrosion.

Q3: Can it handle water intrusion?
Yes — it stays protective even if some water gets into the gearcase.

Q4: How big is the tube?
An 8-ounce tube, perfect for topping off or refilling smaller gearcases.

Q5: Why OEM instead of generic oil?
Mercury’s gear lube is tested in real boats, not labs — it holds up longer and keeps your lower unit safe.