Ultra1Plus SAE 5W-40 Full Synthetic Heavy-Duty Motor Oil

Houston, Texas is the production site for our complete line of lubricants catered to all industries. Utilizing certified API and SAE formulas, we combine base stocks from Valero, ExxonMobil, Motiva, and Calumet refineries with additives from Afton Chemical, Chevron Oronite, Infineum, and Lubrizol. All our products exceed the latest specifications set by the American Petroleum Institute (API), Society of Automotive Engineers (SAE), and the American Chemical Council.

Our U1P HD SAE 5W-40 Full Synthetic Motor Oil, API CK-4/SN is formulated with synthetic base oil and a premium additive package. Designed for use in high-speed four-stroke cycle diesel engines, this oil meets 2017 model year on-highway and Tier 4 non-road exhaust emission standards, as well as being compatible with previous model year diesel engines.

This oil is especially effective at sustaining the durability of emission control systems, where particulate filters and other advanced after-treatment systems are utilized. U1P HD SAE 5W-40 provides enhanced protection against oil oxidation, viscosity loss due to shear, and oil aeration. It also safeguards against catalyst poisoning, particulate filter blocking, engine wear, piston deposits, degradation of low- and high-temperature properties, and soot-related viscosity increase.

In addition to API CK-4, this oil exceeds the performance criteria of CJ-4, CI-4 with CI-4 PLUS, CI-4, and CH-4, and can effectively lubricate engines calling for those API Service Categories. When using this product in conjunction with fuel containing higher than 15 ppm of sulfur, the engine manufacturer's service interval recommendations should be consulted.

This full synthetic motor oil offers several key benefits for heavy-duty diesel engines. It fights wear, reduces oil consumption, and provides improved fuel economy. The advanced API CK-4 formula safeguards Diesel Particulate Filters (DPF) and other after-treatment systems, promoting cleaner emissions. The full synthetic base oil resists heat breakdown, ensuring continuous protection and optimal oil pressure throughout extended service intervals.

Exceeding the latest diesel engine standards, U1P 5W-40 is API CK-4/SN approved for 2017+ on-highway and Tier 4 off-road diesel engines, while remaining compatible with older models. Compared to previous API CJ-4 oils, this motor oil offers superior wear protection for your heavy-duty diesel engine.

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