Choosing the Right Diesel Oil

Big to small, new to old, on-road to off-road, daily driver to racing, we offer premium-quality synthetic diesel oils for any diesel engine and mixed fleets.

AMSOIL Signature Series Max-Duty 5W-30 Synthetic Diesel Oil

Mixed Fleets

Signature Series 5W-30 is a versatile oil aimed at mixed fleets of diesel and gasoline vehicles, simplifying maintenance and lubricant inventory.

• 6X more engine protection¹
• Outstanding cold-temperature performance
• Extended-drain capability maximizes convenience and minimizes downtime

AMSOIL Signature Series Max-Duty 10W-30 Synthetic Diesel Oil
AMSOIL Heavy-Duty 10W-30 Synthetic Diesel Oil

Newer Over-the-Road Trucks
Smaller Off-Road Equipment
Turbodiesel Pickups

Many newer over-the-road trucks and turbodiesel pickups come factory-filled with 10W-30 for improved fuel economy. Signature Series 10W-30 and Heavy-Duty 10W-30 are ideal for customers who want to maintain the improved fuel efficiency afforded by a 10W-30. They also provide outstanding protection for smaller off-road equipment and newer over-the-road trucks calling for a 10W-30.

Heavy-Duty 10W-30

• 4X more engine protection²
• Excellent opportunity for price-conscious customers to move up to AMSOIL quality
• Outstanding protection for OEM-recommended drain intervals

Signature Series 10W-30

• 6X more engine protection¹
• Ideal for customers seeking the ultimate wear protection in severe operating conditions
• Extra protection for extended drain intervals

AMSOIL Signature Series Max-Duty 5W-40 Synthetic Diesel Oil
AMSOIL Heavy-Duty 5W-40 Synthetic Diesel Oil

Turbodiesel Pickups
Over-the-Road Trucks
Heavy Equipment

Signature Series 5W-40 and Heavy-Duty 5W-40 are ideal for turbodiesel-pickup, over-the-road-truck and heavy-equipment owners who want the cold-weather and fuel-economy benefits of a 5W and the protection benefits of an SAE 40.

Heavy-Duty 5W-40

• 4X more engine protection²
• Excellent opportunity for price-conscious customers to move up to AMSOIL quality
• Outstanding protection for OEM-recommended drain intervals

Signature Series 5W-40

• 6X more engine protection¹
• Ideal for customers seeking the ultimate wear protection in severe operating conditions
• Extra protection for extended drain intervals

AMSOIL Signature Series Max-Duty 0W-40 Synthetic Diesel Oil

Vehicles and Equipment Operating in Cold Climates

Signature Series 0W-40 is formulated specifically for diesel applications operating in extreme cold, helping engines turn over faster and reducing startup wear.

• 4X better cold-temperature performance³
• Provides outstanding protection and performance
• Extra protection for extended drain intervals

AMSOIL Signature Series Max-Duty 15W-40 Synthetic Diesel Oil
AMSOIL Heavy-Duty 15W-40 Synthetic Diesel Oil

Over-the-Road Trucks
Off-Road Equipment
Turbodiesel Pickups

Signature Series 15W-40 and Heavy-Duty 15W-40 are the primary recommendations for most on- and off-road heavy-duty diesel applications in the marketplace; 15W-40 is the most widely used viscosity in the diesel world.

Heavy-Duty 15W-40

• 4X more engine protection²
• Excellent opportunity for price-conscious customers to move up to AMSOIL quality
• Outstanding protection for OEM-recommended drain intervals

Signature Series 15W-40

• 6X more engine protection¹
• Ideal for customers seeking the ultimate wear protection in severe operating conditions
• Extra protection for extended drain intervals

AMSOIL 0W-20 100% Synthetic Diesel Oil
AMSOIL 5W-30 100% Synthetic Diesel Oil

Smaller Diesel Pickups, Vans, Cars and SUVs

AMSOIL 100% Synthetic Diesel Oil is engineered to provide industry-leading protection and performance for smaller diesel pickups, vans, cars and SUVs requiring the following specifications:

0W-20
GM dexosD

5W-30
GM dexosD, dexos2; Chrysler MS-11106; Ford WSS-M2C214-B1; ACEA C3

Not for use in applications that require an API CK-4 (or prior) specification.

• 6X more engine protection⁴
• Helps extend engine life and reduce maintenance costs and downtime
• Outstanding protection for OEM-recommended drain intervals

AMSOIL DOMINATOR^® 20W-50 Synthetic Competition Diesel Oil

Modified, Competition Diesel Engines

DOMINATOR 20W-50 Synthetic Competition Diesel Oil is engineered for modified, competition diesel engines and the high-horsepower demands of sled pulling, dyno runs and drag racing.

• Delivers 50% more film thickness⁵
• Jacked with extra zinc and phosphorus for bulletproof wear protection
• Provides professionals and enthusiasts with the power, protection and confidence needed to win

See the AMSOIL Diesel-Oil product pages and data sheets at AMSOIL.com/AMSOIL.ca for further technical details.

¹Based on third-party testing in the Detroit Diesel DD13 Scuffing Test for specification DFS 93K222 using 5W-30 as worst-case representation.
²Based on third-party testing in the Detroit Diesel DD13 Scuffing Test for specification DFS 93K222 using 10W-30 as worst-case representation.
³When compared to SAE 15W-40 in ASTM D5293 Cold-Cranking Viscosity test.
⁴Based on third-party testing in the OM646LA cam wear test using 0W-20 as worst-case representation.
⁵Compared to the 3.5cP HTHS limit for SAE 15W-40.