Yamalube 20W-40 4 Stroke Engine Oil

Yamalube 4M Four Stroke Outboard Oil 20W-40

Yamalube 20W-40 is designed for maintaining viscosity in 4 stroke outboard engines in marine environments. NMMA FC-W certified, this oil features rust inhibitors that helps keep you moving smoothly and increasing engine life. Yamalube utilizes anti-friction protection to help promote efficient fuel economy and increased performance. Additionally, Yamalube 4M FC-W has the best blend of anti-foam technology available. This is important, as foaming reduces lubricity which can lead to engine wear and, over time, failure.

Need to know how much oil you need?

Check our Yamaha oil capacity guide for more information!

Features:

• Mineral-based four-stroke outboard engine oil
• Top-tier NMMA FC-W certified oil
• Formulated to protect your engine in the most demanding marine conditions
• Developed to replace the 10W-30 in warmer climates 
• Meets or exceeds OE specifications for Outboard Oil
• Advanced additive package to prevent rust and corrosion, breakdown under high RPM and maximum load conditions

Yamalube 20W-40 Oil is NMMA FC-W certified. Oils that earn this certification have been proven to provide the performance and quality demanded by today's advanced four stroke outboard technology. These oils stand up to extended full-throttle operation, high loads, and the salt and moisture-rich air found in harsh marine environments.

Sizes Available:

• Quart
• Gallon

Frequently Asked Questions

What is Yamalube 4M Four Stroke Outboard Oil 20W-40 used for?

Yamalube 4M Four Stroke Outboard Oil 20W-40 is a mineral-based engine oil designed to maintain viscosity in four-stroke outboard engines operating in marine environments. It is formulated to provide protection against rust, corrosion, and oil breakdown under demanding marine conditions.

What protection does Yamalube 4M 20W-40 provide for four-stroke outboard engines?

Yamalube 4M 20W-40 features rust inhibitors and an advanced additive package designed to help protect against rust, corrosion, and breakdown under high RPM and maximum-load conditions. Its anti-friction protection also helps promote efficient operation and performance.

Is Yamalube 4M 20W-40 NMMA FC-W certified?

Yes. Yamalube 4M 20W-40 is NMMA FC-W certified. The supplied description states that this certification indicates the oil meets the performance and quality demands of modern four-stroke outboard engines operating under high loads and extended full-throttle conditions.

Can Yamalube 4M 20W-40 replace 10W-30 outboard oil?

Yamalube 4M 20W-40 was developed to replace 10W-30 in warmer climates. It also meets or exceeds OE specifications for outboard oil. Confirm the oil viscosity specified for your particular engine before changing oil types.

How does the anti-foam technology in Yamalube 4M 20W-40 benefit an outboard engine?

Yamalube 4M 20W-40 uses anti-foam technology because foaming can reduce lubricity and contribute to engine wear. The oil is formulated to help maintain lubricity while providing protection during demanding marine operating conditions.

What sizes of Yamalube 4M Four Stroke Outboard Oil 20W-40 are available?

Yamalube 4M Four Stroke Outboard Oil 20W-40 is available in quart and gallon sizes. The required amount varies by engine, so consult the appropriate engine oil capacity information to determine how much oil your outboard requires.

California Residents: WARNING Cancer and Reproductive Harm - P65Warnings.ca.gov