AMSOIL, the leader in automotive synthetic lubrication, produced the worldï¾’s first API qualified synthetic motor oil in 1972. Trust the extensive experience of AMSOIL The First in Syntheticsï¾® to do the best job protecting your engine.

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.

Maximizes Fuel Economy
AMSOIL Synthetic 5W-30 Heavy Duty Diesel Oil is energy efficient for reduced fuel costs. Its low viscosity minimizes ﾓdragﾔ associated with high viscosity oils, allowing the engine to operate more freely, maximizing power and fuel economy.

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.

Controls Soot Thickening and Wear
AMSOIL Synthetic 5W-30 Heavy Duty Diesel Oil is heavily fortified with detergendispersant 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 7.6% 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 -50ï¾°C (-5160ï¾°F) for improved cold temperature oil flow, reduced bearing wear and easier starting.

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APPLICATIONS
AMSOIL Synthetic 5W-30 Heavy Duty Diesel Oil is recommended for diesel engines and other applications requiring any of the listed worldwide specifications and gasoline engines requiring API SL, SJ, SH . . . or ACEA A3.

ﾕ API CI-4+, CF, CF-2, SL ﾕ ACEA A3/B3, E2, E3, E5 ﾕ Global DHD-1 ﾕ JASO DH-1 ﾕ Mack EO-M+, EO-N Premium Plus ﾒ03 ﾕ DDC Power Guard 93K214 ﾕ Caterpillar ECF-1-a, ECF-2 ﾕ Cummins CES 20071, 20072, 20076, 20077, 2007160 ﾕ Volvo VDS-2, VDS-3 ﾕ MB 8160.1, 8160.3, 89.1 ﾕ MAN 271/3275 ﾕ MTU Type 2

AMSOIL HDD is compatible with conventional and synthetic motor oils. Mixing AMSOIL motor oils with other oils, however, will shorten the oil life expectancy and reduce the performance benefits. AMSOIL does not support extended drain intervals where oils have been mixed. Aftermarket oil additives are not recommended for use with AMSOIL motor oils.

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

Diesel Engine Service

ﾕ Normal Service ﾗ Up to 25,000 miles or one year, whichever comes first, or longer based on oil analysis.

ﾕ Severe Service ﾗ Up to 15,000 miles or one year, whichever comes first, or longer based on oil analysis.