Premium Protection for Severe-Service Diesels

AMSOIL 15W-40 Heavy-Duty Diesel and Marine Oil

AMSOIL 15W-40 Diesel Oil resists heat and breakdown better than conventional petroleum oils for long-lasting performance and protection

Extend drain intervals far beyond those recommended for conventional petroleum oils

AMSOIL 15W-40 Diesel Oil resists heat and breakdown for long-lasting performance and protection

AMSOIL 15W-40 Heavy Duty Diesel and Marine Oil resists heat and breakdown better than conventional oils, supporting extended drain intervals and reducing maintenance costs and waste-oil disposal. Its low volatility minimizes oil consumption and emissions, while excellent cold-flow properties ensure reliable startup lubrication down to -44°F, minimizing wear during cold-weather operation. This oil is suitable for use with both low- and high-sulfur diesel fuels in standard, turbocharged, or supercharged engines, including those equipped with EGR systems.

Wholesale Pricing: Call Now (501) 500-4887

AMSOIl 15W-40 Heavy-Duty Diesel oil

Benefits of Using AMSOIL 15W-40 Heavy-Duty Diesel and Marine Oil in Off-Road Construction Applications

Reduced Maintenance and Downtime: Amsoil 15W-40 motor oil: will extend oil drain intervals, meaning fewer oil changes are needed. This reduces downtime and labor costs, allowing equipment to spend more time working and less time in maintenance

Adaptability to Severe Service: These oils are specifically formulated to handle the severe service and variable climates encountered in construction, from hot summer days to freezing winter mornings, ensuring consistent engine protection and performance.

AMSOIL 15W-40 Heavy-Duty Diesel and Marine Oil in 55-gallon drums or 275-gallon totes: large fleets or high-volume equipment needs

Extended Engine Protection and Longevity: Synthetic heavy-duty oils like AMSOIL 15W-40 provide superior wear protection, helping critical engine components last longer even under heavy loads and frequent stop-start cycles typical in construction environments

Frequently Asked Questions

What is the Amsoil 15W-40 Application Range?

Suitable for a wide variety of engines, including over-the-road trucks, off-road equipment, marine, agriculture, mining, and industrial applications

Amsoil 15W-40 Base Oil Quality?

100% synthetic, high film strength for superior separation of metal parts, reducing friction, heat, and oxidation.

Reduced Maintenance Costs with Amsoil 15W-40 Diesel motor oil?

The ability to extend drain intervals and minimize deposits means less frequent oil changes and lower maintenance costs over time.

Wear Protection of Amsoil 15W-40 AMEQT-EA?

Advanced additive package with high Total Base Number (TBN 12+) for excellent acid neutralization, soot control, and wear protection.

Can I Purchase AMSOIL Products at the Wholesale Price?

Commercial Account: Businesses that use AMSOIL products in their own equipment can set up a Commercial Account to access wholesale pricing, volume discounts, and free shipping on qualifying orders.

Preferred Customer: For as little as $10 for six months, individuals can join the Preferred Customer program and receive up to 25% off retail pricing on all AMSOIL products. Preferred Customers also enjoy benefits such as free shipping on orders over $100, exclusive promotions, rewards points, and access to product information. There are no minimum order requirements, and you can order online or by phone with direct delivery to your door.

Up to 28% off retail pricing for registered customers.

AMSOIL helps you lower operating costs, minimize downtime, and keep projects on track by optimizing your lubrication program and providing dedicated service and technical expertise.

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All retail accounts purchase at our lowest prices, and each purchase earns co-op credit that can be used to purchase merchandising, signage or advertisements to promote AMSOIL products at your store.