Mercury – 10W-30 Oil Change Kit | 4-Stroke Yamaha F225–F300 Series | Marine Oil & Filter Set | 8M0162423

Overview

Every boater knows that an engine runs best when it’s cared for with consistency and the right tools. There’s a certain comfort that washes over you after an oil change — that feeling when you turn the key and the engine settles into a clean, confident idle. If you run a Yamaha F225, F250, or F300, that peace of mind becomes even more important. These engines have power to spare, and keeping them protected is part of the deal. Mercury Marine part 8M0162423 makes that simple. One box. Everything you need. No second guessing. Just reliable protection so you can focus on the water, not what’s happening under the cowling.

Key Features

• Complete oil change kit for Yamaha F225, F250, and F300 four-stroke outboards
• Includes seven 1-liter bottles of Quicksilver 10W-30 marine engine oil
• Premium Quicksilver oil filter, drain plug gasket, and funnel included
• Advanced anti-wear additives deliver up to 33% better camshaft protection
• Superior viscosity retention under heavy loads and high heat
• Meets or exceeds Yamaha manufacturer specifications
• NMMA FC-W and FC-W Catalyst Compatible

Engine & Boat Compatibility

This kit is designed for Yamaha outboards in the following range:

• F225, F250, and F300 four-stroke engines
• Ideal for offshore center consoles, large bay boats, coastal cruisers, pontoons, twin-engine setups, and sportfishing hulls
• For engines requiring 10W-30 FC-W-rated marine oil

Performance & Practical Benefits

When you change your oil with this kit, you’ll feel the difference almost immediately. These larger Yamaha models work hard — sometimes harder than we realize — especially when the seas are rough or the boat is fully loaded. Quicksilver’s 10W-30 marine oil is built for exactly those conditions.

The anti-wear additives act like a protective cushion for the engine’s moving parts, reducing friction and helping the motor stay smooth even during long, hot days at cruising speed. The oil’s ability to maintain proper viscosity under stress means it continues to protect when other oils begin to thin out.

Corrosion resistance is another major benefit. Saltwater, humidity, and long periods of downtime can take a toll on internal components. This oil helps shield those surfaces so the engine stays reliable through every season — even if the boat spends stretches waiting on better weather.

The included oil filter threads on cleanly and seals with confidence, ensuring steady oil pressure. With the funnel and gasket included, the process becomes simple and tidy. No hunting for extra parts. No guessing. Just a straightforward, satisfying maintenance routine.

Why Buy OEM

When it comes to large outboards, “good enough” isn’t good enough. These engines represent a major investment, and using an OEM-grade kit like Mercury Marine part 8M0162423 is one of the easiest ways to protect that investment. The oil is engineered specifically for marine duty — not repurposed from automotive formulas — and the filter is built for exact fitment and consistent performance.

Aftermarket oils may meet bare-minimum standards, but few can match the stability, corrosion protection, and long-term wear resistance of a marine-specific blend. This kit removes every ounce of uncertainty and delivers peace of mind you can feel each time the engine runs.

FAQ

Q1: Which engines does this oil change kit fit?

It’s built for Yamaha F225, F250, and F300 four-stroke outboards.

Q2: What makes this marine oil different from automotive oils?

It’s designed for heat, moisture, long run times, and high-load operation — conditions unique to marine engines.

Q3: How do I confirm compatibility?

Check your manual. If your engine requires 10W-30 FC-W-rated oil, this kit is correct.

Q4: Can this oil be used in both saltwater and freshwater?

Yes. The corrosion inhibitors protect internal parts in all marine environments.

Q5: Is installation straightforward for most boat owners?

Absolutely. Everything required is included, making the job clean and simple.