Mercury – Full Synthetic Motorcycle Oil | 20W-50 4-Stroke Lubrication | Full Synthetic | 8M0060086

Overview

Every rider has that one moment when the road stretches out ahead, the engine settles into its rhythm, and everything just feels right. It’s in moments like those that you appreciate having an oil you can trust — one that keeps your engine running steady, even when the heat builds or the miles add up. The Quicksilver 20W-50 Full Synthetic Motorcycle Oil (8M0060086) gives you that kind of confidence. Whether you ride a big V-Twin that loves long highway runs or a modern 4-stroke that sees weekend cruises, this oil keeps it protected, responsive, and smooth from the first cold start to the last mile of the day.

Key Features

• Full synthetic formulation designed for 4-stroke motorcycle engines
• Built to handle high rpm, elevated temperatures, and long periods of non-use
• Excellent film strength resists shear and oxidation to extend fluid life
• Advanced additives guard against corrosion and wear in high-heat conditions
• Instant cold-flow protection for easier starting
• Optimizes clutch performance, including wet clutch applications
• One-gallon bottle for convenient service intervals
• Mercury Marine part number 8M0060086

Engine & Boat Compatibility

Although this product is engineered specifically for motorcycles, it’s created with the same reliability and precision Mercury Marine brings to all its lubricants. This oil is ideal for:

• All 4-stroke motorcycle engines
• Air-cooled and liquid-cooled V-Twin engines
• High-displacement touring bikes
• Engines that sit for extended periods between rides
• Scooters, cruisers, and performance street bikes

Performance & Practical Benefits

When you twist the throttle on a warm day, you want the engine to feel tight, controlled, and ready to respond. This 20W-50 full synthetic oil keeps everything inside the engine moving smoothly, even when heat and rpm push the limits. The viscosity remains stable, giving you consistent protection whether you’re rolling through stop-and-go traffic or cruising at highway speeds.

Riders running big V-Twins will especially notice the difference — less chatter, more smoothness, and a steadier feel at idle. Long-interval riders benefit too, since the oil resists oxidation and maintains its protective qualities far longer than conventional blends. On cold mornings, the engine turns over cleanly without that dry hesitation, thanks to quick-flow lubrication.

Inside the engine, components stay cleaner, cooler, and better protected from corrosion. Clutch engagement feels predictable and controlled, which is especially important for bikes with wet clutch systems. The overall result is a motorcycle that feels healthier, runs smoother, and responds the way it should every time you ride.

Why Buy OEM

With OEM-quality oil, you’re not guessing. Mercury engineers formulate their lubricants to meet demanding real-world conditions, not just lab tests. Aftermarket oils vary widely, but a Mercury Marine part gives you proven consistency, long-term protection, and full compatibility with manufacturer warranties.

Choosing OEM isn’t about being fancy — it’s about avoiding engine wear, improving performance, and saving money down the road. When an oil is designed to fit and perform right the first time, everything else just works better.

FAQ

Q1: Which engines is this oil designed for?

It’s ideal for all 4-stroke motorcycle engines, including air-cooled and liquid-cooled V-Twins.

Q2: What makes it better than aftermarket oils?

Its full synthetic formulation meets Mercury’s strict standards for heat resistance, wear protection, and long-term stability.

Q3: How do I know if it’s right for my bike?

If your manual recommends 20W-50 for a 4-stroke engine, this oil is an excellent fit.

Q4: Can it be used in both hot and cold weather?

Yes — it delivers reliable cold-start flow and strong high-temperature performance.

Q5: Is it easy for most riders to use during routine maintenance?

Definitely. The one-gallon bottle makes oil changes simple and efficient.