5W30 Diesel Motor Oil (Product Code: HDDQT)

15W-40 diesel motor oil

Available in quart, 1 gallon bottle, 2.5-gallon bottle, 30-gallon drum or 55-gallon drum.


World's Best Synthetic Diesel Oil

Motor oil comparisons

Unsurpassed Protection Against Engine Wear
In the Four-Ball Wear Test (ASTM D-4172B) AMSOIL HDD demonstrated better anti-wear performance than competitive petroleum and synthetic oils. Even under high temperatures and pressures, its superior film strength and anti-wear additives help prevent metal-to-metal contact. AMSOIL HDD reduces ring wear, cylinder bore polishing, oil consumption and valve train wear for improved engine life and lower maintenance costs.

AMSOIL Series 3000 100% Synthetic 5W-30 Diesel Oil (HDD) delivers extraordinary lubrication in both diesel and gasoline engines found in commercial, fleet and personal vehicles. By combining the industry’s premier synthetic technology with AMSOIL premium additives, AMSOIL HDD exceeds the higher performance demands of modern engines. It withstands the stress of higher heat, higher acid levels and excessive soot loading found in EGR equipped engines. AMSOIL Series 3000 Synthetic 5W-30 Diesel Oil consistently outperforms conventional and synthetic diesel oils for long-lasting performance and protection.

Reduces Oil Consumption and Emissions
AMSOIL HDD loses only 6.7% of its mass to high temperature volatility (evaporation) in the NOACK test, outperforming all conventional oils. Because less oil vapor passes into the combustion chamber, oil consumption and emissions are reduced. Additionally, lower volatility helps AMSOIL HDD retain its viscosity after high temperature service for continued dependable protection and excellent fuel economy.

Extends Drain Intervals
AMSOIL HDD can extend drain intervals far beyond those recommended for conventional oils. Its unique synthetic formulation and long drain additive system deliver the best possible engine protection, cleanliness and performance over extended drain intervals, reducing vehicle maintenance and waste oil disposal costs.

Controls Soot Thickening and Wear
AMSOIL Synthetic 5W-30 Heavy Duty Diesel Oil is heavily fortified with detergent/dispersant additives and is naturally resistant to soot. It keeps soot particles suspended independently, preventing them from attaching together to form larger, wear-causing particles. Viscosity increase is minimized and soot related wear is controlled.

Reduces Oil Consumption and Emissions
AMSOIL HDD loses only 6.7% of its mass to high temperature volatility (evaporation) in the NOACK test, outperforming all conventional oils. Because less oil vapor passes into the combustion chamber, oil consumption and emissions are reduced. Additionally, lower volatility helps AMSOIL HDD retain its viscosity after high temperature service for continued dependable protection and excellent fuel economy.

Excels in Extreme Temperatures
AMSOIL Synthetic 5W-30 Heavy Duty Diesel Oil resists thermal (heat) breakdown, oxidation and sludge formation better than conventional oils. And unlike conventional petroleum oils, AMSOIL HDD contains no wax. It stays fluid down to -60°F for improved cold temperature oil flow, reduced bearing wear and easier starting.

SERVICE LIFE
AMSOIL Synthetic 5W-30 Heavy Duty Diesel Oil is recommended for extended drain intervals in unmodified(1), mechanically sound(2) vehicles or equipment as follows:

Personal Light Truck Diesel or
Gasoline Engine Service

• Normal Service(3) – Up to 25,000 miles or one year, whichever comes first, or longer based on oil analysis.

• Severe Service(4) – Up to 15,000 miles or one year, whichever comes first, or longer based on oil analysis.

• Replace AMSOIL Ea™ full flow oil filter or Donaldson Endurance™ ELF 7349 at the time of oil change up to 25,000 miles (other brands at standard OEM* intervals).

Commercial or Fleet Vehicles, Long-Haul Trucks, Marine Craft, RV, Off-Road Equipment

• Non-EGR equipped diesels – extend drain intervals up to two times (2X) the OEM* recommended drain interval or one year, whichever comes first, or longer based on oil analysis.

• EGR equipped or low emission diesels – extend drain intervals based on oil analysis or use the OEM* recommended interval.

• Replace Donaldson Endurance™ or AMSOIL Ea™ full flow oil filters at the time of oil change up to two times (2X) longer than the OEM* standard interval, not to exceed 60,000 miles in long-haul trucks.

*OEM = Original Equipment Manufacturer

(1) Where the engine or operating conditions have been modified from the original manufacturers’ design, no oil change interval recommendation is made. Oil change intervals are at the owner’s discretion. Examples include the use of performance computer chips; modified exhaust, fuel or air induction systems and the use of fuels other than those recommended for normal operation by the manufacturers.

(2) Engines are in good working condition and within the factory design settings. Mechanically sound engines, for example, do not leak oil or consume excessive amounts, are not worn out, do not overheat, do not have internal or external anti-freeze leaks and have a properly working emission control system. AMSOIL recommends repairs be made to malfunctioning engines prior to the installation of AMSOIL synthetic oils.

(3) Personal transportation vehicles frequently traveling greater than 10 miles at a time and not operating under severe service.

(4) Diesel and gasoline engines – commercial or fleet vehicles, extensive engine idling, daily short trip driving less than 10 miles (16 km), frequent towing, plowing or hauling heavy loads, frequent driving in dusty conditions. Also, first and subsequent use of AMSOIL engine oil in gasoline engines with 100,000 miles or greater and turbo/supercharged gasoline engines.

AMSOIL Ea™ and Donaldson Endurance™ full flow oil filters are designed for extended drain intervals. They stop smaller particles, have less restriction and last longer than regular filters. For best performance, use AMSOIL Ea™ or Donaldson Endurance™ oil filters. Oil Analyzers Inc., 715-395-0222, is a division of AMSOIL that provides cost effective, quality oil analysis services.

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Other oils
 Diesel 5W30
 Diesel 10W30
 European 5W40

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