Royal Purple 10W30 Diesel Motor Oil, 1 Gallon

Specifically formulated to maximize performance and meet the demands of today's heavy-duty engines, Royal Purple Duralec Ultra motor oil is fortified with a high level of zinc/phosphorus anti-wear additive and Royal Purple's proprietary Synerlec additive technology. Synerlec creates a tenacious ionic bond with metal surfaces, providing protection upon startup and greatly increased film strength that helps eliminate metal-to-metal contact, even under severe conditions. This helps to keep internal engine parts cleaner than detergents alone.

The superior oxidation resistance of Duralec Ultra also greatly extends drain intervals and minimizes oil degradation. Recommended for use in both two-cycle and four-cycle diesel applications, this motor oil is designated with the part number 83456.

Duralec Ultra is specifically designed to maximize the performance and meet the demands of today's heavy-duty engines. It is fortified with a high level of zinc/phosphorus anti-wear additive, as well as Royal Purple's proprietary Synerlec additive technology. The Synerlec additive creates a strong ionic bond with metal surfaces, providing protection during startup and significantly increasing the film strength to help prevent metal-to-metal contact, even in severe conditions.

This enhanced protection helps to keep internal engine parts cleaner than detergents alone. Additionally, the superior oxidation resistance of Duralec Ultra greatly extends the oil's drain intervals and minimizes degradation, ensuring optimal performance over a longer period.

Suitable for use in both two-cycle and four-cycle diesel applications, Duralec Ultra motor oil is assigned the part number 83456. Its formulation is tailored to meet the specific requirements of modern heavy-duty engines, providing the necessary performance and protection to maintain optimal engine operation.

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