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Yamaha Yamalube Marine 4M Mineral Based 4-Stroke Outboard Engine Oil- 1 Quart, #LUB-10W30-FC-12

  • Based on 487 reviews
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Availability: Only 3 left in stock, order soon!
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Arrives Jul 5 – Jul 7
Order within 11 hours and 4 minutes
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Size: 1 Quart


Number of Items: 1


Features

  • MINERAL-BASED FORMULA: Yamalube 4M is a mineral-based 20W-40 four-stroke outboard engine oil specifically formulated for use in harsh marine environments.
  • NMMA FC-W APPROVED: Meets the FC-W rating standard, ensuring minimum requirements for outboard engine lubrication, corrosion protection, and resistance to oil dilution caused by fuel.
  • PROPRIETARY ADDITIVE PACKAGE: Yamaha's exclusive additive formula allows Yamalube 4M to meet or exceed industry standards for lubricity and corrosion protection.
  • HIGH-RPM PERFORMANCE: Engineered for outboard engines that operate at 4500 to 6000 rpm all day, providing protection that standard automotive oils simply cannot deliver.

Description

Yamalube 4M 20W-40 is a mineral-based four-stroke outboard engine oil engineered specifically for the demanding marine environment. Available in a 1-gallon size, this oil carries the NMMA FC-W certification, which sets the minimum standard for outboard engine lubrication, corrosion protection, and resistance to oil dilution caused by fuel. Yamalube's exclusive proprietary additive package ensures this oil meets or exceeds industry standards for lubricity and corrosion protection. Unlike automotive engine oils, which are designed for engines typically cruising around 2,500 rpm, outboard engines routinely operate between 4,500 and 6,000 rpm under heavy load. This high-rpm, high-load, moisture-rich environment demands a specially formulated oil, and Yamalube 4M is built to deliver reliable protection where standard automotive oils simply fall short. Trust Yamalube 4M to keep your outboard running strong through every outing on the water.

SAE J300 Viscosity Grade: 20W-40


Brand: Yamaha Motor


Liquid Volume: 1 Quarts


Package Information: Bottle


Vehicle Service Type: Outboard


Container Type: Bottle


Compatible with Vehicle Type: Outboard


Automotive Fit Type: Vehicle Specific Fit


SAE J300 Viscosity Grade: 20W-40


Liquid Volume: 1 Quarts


Brand Name: Yamaha Motor


Manufacturer Part Number: LUB-10W30-FC-12


UPC: 780848334382 191088001727


Global Trade Identification Number: 82


Manufacturer: Yamaha Motor


Size: 1 Quart


Model Number: LUB-10W30-FC-12


Item Weight: 1.9 Pounds


Item Type Name: Engine Oil


Included Components: Yamaha Yamalube Marine 4M Mineral Based 4-Stroke Outboard Engine Oil- 1 Quart, #LUB-10W30-FC-12


Unit Count: 32.0 Fluid Ounces


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Jul 5 – Jul 7

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Price was fair
Size: 1 Gallon Number of Items: 1
Correct oil for Yamaha
Reviewed in the United States on May 12, 2026 by lvclark

  • 👍
Size: 2 Quarts Number of Items: 1
Excellent quality and service thank you
Reviewed in the United States on May 3, 2026 by Russell Motta

  • Solid product
Size: 1 Gallon Number of Items: 1
Cheapest I could find for my yamaha outboard. Never had an issue.
Reviewed in the United States on October 21, 2025 by Nate

  • GOOD
Size: 1 Gallon Number of Items: 1
NO PROBLEMS
Reviewed in the United States on March 29, 2026 by Leonard B.

  • The special Yamalube
Size: 2 Quarts Number of Items: 1
Do not buy any thing other than Yamalube for your outboard it’s quality is unbeatable. The Mineral's and functionality of this oil with help extend this life of you outboard way beyond the traditional oil. I don’t know what they put in this stuff but the fuel mileage is far better now that before my last oil change. Great value for money less than my local shop and very easy to use pop the top and fill it up ... show more
Reviewed in the United States on May 1, 2025 by Justin

  • 🛢️ Premium Marine Engine Oil for Yamaha Outboards 🛥️
Size: 2 Quarts Number of Items: 1
I recently used this oil for my Yamaha outboard motor, and I couldn't be more pleased with its performance! 🚤💧 This mineral-based 10W-30 oil is specifically designed for four-stroke outboard engines, ensuring optimal lubrication and protection under high-rpm, high-load marine conditions. ⚙️🌊 The FC-W certification guarantees it meets the stringent standards for watercraft engines, offering peace of mind during extended outings. 🛥️✅ After using it, I noticed smoother engine operation and improved responsiveness, which made my time on the water even more enjoyable. 🌅⚡ I highly recommend this oil to fellow boaters looking for reliable and high-quality engine maintenance. It's a must-have for anyone serious about keeping their outboard engine running smoothly. 🛠️👍 ... show more
Reviewed in the United States on April 16, 2025 by David Houck

  • Great price for annual maintenance
Size: 1 Gallon Number of Items: 1
Great price for OEM Oil for my yearly boat maintenance. Delivered right to my door.
Reviewed in the United States on October 13, 2025 by Terry Sweeney

  • good
Size: 1 Quart Number of Items: 1
a bit expensive but good
Reviewed in the United States on December 10, 2025 by robin thibou

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