Description
Mercury 8M0078015 — Racing (Extreme Performance) Gear Lube 85W-90, 1 Quart
Genuine Mercury Racing gear lube (8M0078015) formulated at SAE 85W-90 for high-load, high-heat marine gearcases. Its tackifiers and pressure additives help maintain a protective oil film under extreme thrust loads, while advanced emulsifiers provide protection even if water enters the gear housing.
Applications
For high-performance outboard and sterndrive gearcases that specify 85W-90 Mercury Racing/Extreme Performance gear lube. Typical use includes performance gearcases on Mercury/MerCruiser platforms. Always confirm the required lubricant in your owner’s or service manual before filling.
Shipping & Returns
Fast processing and shipping from our marine parts warehouse. 30-day returns on unopened, unused items. Review our Refund Policy for full details.
Key Facts
- Part Number: 8M0078015
- Viscosity: SAE 85W-90
- Type: Racing / Extreme Performance marine gear lube
- Bottle Size: 1 quart
- UPC: 745061915206
- Benefits: Wear protection, heat stability, and resistance to water intrusion
- Category: Oils & Lubricants › Gear Lubes
What’s Included
- 1 × Mercury Racing (Extreme Performance) Gear Lube 85W-90, 1-quart bottle (8M0078015)
Service Notes
- Service per your manual: fill from the drain until oil exits the vent; install new drain screw seals and torque fasteners to spec.
- Use a compatible gear-lube pump for clean, complete fills; verify thread size for your gearcase.
- After filling, run briefly, recheck level, and inspect for leaks; dispose of used lubricants responsibly.