SAE 15w-40 HD MOTOR OIL

HIGH PERFORMANCE MOTOR OIL

Royal Purple® HD Motor Oil is specifically formulated to maximize performance and meet the demands of heavy-duty engines. Many
older heavy-duty engines, and some newer commercial and stationary engines recommend the use of a straight grade heavy duty engine
oil. HD Motor Oil is fortified with a high level of zinc/phosphorus anti-wear additive and a generous dose Synerlec®. Synerlec® is Royal
Purple’s proprietary additive chemistry that greatly increases the protective film strength of the oil, reducing metal to metal contact, friction
and wear. Synerlec® also increases the oil’s resistance to thermal degradation, reducing deposit formation and lengthening the oil’s useful
life.
HD Motor Oil reduces parasitic loss compared to other straight grade HD engine oils, saving fuel, and its synthetic solvency keeps internal
engine parts cleaner than detergents alone. Superior oxidation resistance also minimizes oil degradation and greatly extends engine oil
drain intervals, reducing maintenance costs. HD motor oil is recommended for use in gasoline and diesel applications including
automotive, commercial fleet and stationary industrial engines that recommend the use of an API CF or API SJ engine oil. Royal Purple
HD Motor Oils may also be used in transmissions and gear boxes that specify the use of SAE 30, SAE 40, or SAE 50 engine oil.

PERFORMANCE ADVANTAGES

• Superior wear protection
• Greatly extends oil drain intervals
• Superior corrosion protection
• Reduced exhaust emissions
• Increased resistance to varnish piston deposits and sludge formation
• Exceeds API performance standard CF/SJ