Cummins Special Engine Oil CK-4 10W-30: A Long-Lasting Protective Barrier for Heavy-Duty Engines

In heavy-duty fields such as commercial vehicles, construction machinery, and mining equipment, Cummins engines are highly favored for their powerful performance and reliability. Adaptable special lubricating oil is a core element ensuring their long-term stable operation. As a fully synthetic lubricating oil compliant with the high-level API CK-4 standard, Cummins Special Engine Oil CK-4 10W-30 is tailor-made for various Cummins engine series. Integrating advanced formula technology and rigorous adaptability testing, it excels in wear protection, environmental compatibility, and service life extension, making it an ideal lubrication solution for engines meeting National IV to National VI emission standards.

I. Core Product Specifications and Certifications: Meeting the Needs of High-Demand Engines

Cummins CK-4 10W-30 special oil is refined from deeply hydrotreated high viscosity index fully synthetic base oil, combined with imported high-quality additives and advanced blending technology, with all indicators reaching the top industry level. Its core specification highlights are remarkable: the API grade is CK-4, a high-level standard released in 2016 that has stricter requirements on oxidation stability and wear resistance than the previous CJ-4 grade, fully meeting the high-performance needs of modern heavy-duty diesel engines; the viscosity grade is 10W-30, with a low-temperature dynamic viscosity of 6574 mPa·s at -25℃, a pour point as low as -42℃, and a flash point as high as 222℃. It can realize all-season adaptation from -25℃ to high-temperature environments, especially suitable for low-temperature environments or working conditions with frequent start-stop.

This product has passed multiple authoritative certifications, including Cummins CES 20081 and 20086 official certifications. It is also compatible with API CJ-4/CI-4, European ACEA E7/E11 and other standards. It can be adapted to engines equipped with Selective Catalytic Reduction (SCR), Diesel Particulate Filter (DPF) and Exhaust Gas Recirculation (EGR) systems, perfectly meeting the usage needs of Cummins engines that meet National VI and below emission standards.

II. Core Technical Advantages: Multi-Dimensional Protection for Engine Operation

With precise formula design, Cummins CK-4 10W-30 special oil builds comprehensive advantages in lubrication protection, environmental compatibility, economic efficiency and energy saving, accurately matching the working characteristics of heavy-duty engines.

In terms of wear resistance and stability, it adopts organic molybdenum metal film protection technology and high-performance anti-wear additives, with wear resistance improved by 20% compared with CJ-4 grade. It can effectively reduce the wear of core components such as cylinder walls, pistons and crankshafts, especially suitable for engine protection under heavy-load and high-speed working conditions. Its excellent oxidation stability can reduce the formation of sludge and varnish, and the high-temperature viscosity stability is improved by 25%. Even in the high-temperature environment of long-distance continuous operation, it can avoid oil film rupture and ensure continuous lubrication. At the same time, good shear stability can maintain viscosity consistency for a long time, accurately exerting the subtle performance of the engine.

In terms of environmental compatibility, it adopts a low-sulfur, low-phosphorus and low-ash (Low SAPS) environmental protection formula, with ash content reduced by 30% compared with traditional engine oil. It can effectively inhibit DPF clogging, extend the service life of exhaust after-treatment devices, reduce regeneration frequency, and ensure that National VI engines meet emission standards. This formula is perfectly compatible with Cummins engine after-treatment systems, can avoid the poisoning effect of additives on SCR catalysts, and meet Euro VI/National VI environmental protection requirements.

In terms of economic efficiency and energy saving, the optimized low-friction formula can reduce engine operating resistance, improve fuel economy by 3%-5%, and significantly reduce fuel consumption in long-term use; the long-acting formula design greatly extends the oil change interval. In road heavy-duty truck applications, the oil change interval can reach 70,000-100,000 kilometers, and in non-road equipment, it can reach more than 600 hours. Compared with conventional engine oil, it reduces maintenance frequency and lowers maintenance costs.

III. Application Scenarios and Adaptable Models: Covering Multi-Field Heavy-Duty Needs

Based on excellent adaptability and environmental compatibility, Cummins CK-4 10W-30 special oil is widely used in multiple road and non-road fields, especially suitable for various Cummins heavy-duty engine series. In the road field, it is suitable for Cummins engines equipped on heavy-duty trucks such as Jiefang J7, as well as Cummins commercial vehicle engines for high-frequency heavy loads such as long-distance logistics and engineering transportation; in the non-road field, it can be adapted to Cummins B and C series diesel engines, as well as construction machinery in scenarios such as oil and gas extraction, construction, agriculture and mining, such as excavators, loaders, generator sets and other equipment.

In terms of environmental adaptation, when the ambient temperature is below -5℃, the 10W-30 viscosity grade engine oil performs particularly prominently, which can start quickly and form an effective oil film; under high-temperature and heavy-load working conditions, its excellent high-temperature stability can avoid engine oil deterioration, making it especially suitable for engines that operate at high speed for a long time or under high-intensity operations. It should be noted that this product is suitable for fuel with sulfur content not exceeding 0.05wt.%, to avoid inferior high-sulfur diesel damaging the additive system.

IV. Usage and Maintenance Notes: Maximizing Product Value

Scientific use and maintenance are crucial to ensuring the optimal performance of Cummins CK-4 10W-30 special oil. When refueling, it is necessary to strictly follow the requirements of the Cummins engine manual to ensure the oil level is within the specified range and avoid overfilling or underfilling; the initial oil change interval is recommended to be 50 hours, and subsequent intervals should be adjusted according to engine working conditions. Under normal heavy-load working conditions, the oil should be changed every 250-300 hours or 70,000-100,000 kilometers, and the specific interval should be combined with the equipment operation manual.

In daily maintenance, it is necessary to regularly check the oil level and quality. If the engine oil becomes turbid, contains metal debris or has an abnormal odor, it should be replaced in time; at the same time, pay attention to the cleaning and replacement of the air filter to avoid impurities entering the engine and affecting the lubrication effect. For engines equipped with DPF, it is necessary to use high-quality low-sulfur fuel, and regularly check the working status of the after-treatment system to ensure the coordinated adaptation of the engine oil and the after-treatment system. In addition, although this product is compatible with old engines, it is recommended to give priority to high-viscosity engine oil for engines with large piston gaps in old models to ensure oil pressure stability.

V. Market Reputation and Summary: A Reliable Choice for Heavy-Duty Scenarios

As an officially recommended special lubricating oil by Cummins, CK-4 10W-30 has accumulated a good market reputation due to its stable performance. User feedback shows that when this engine oil is used in heavy-duty equipment such as long-distance heavy-duty trucks and mining machinery, the engine wear rate is significantly reduced, the frequency of DPF clogging is greatly decreased, and the maintenance cost savings brought by the extended oil change interval are obvious. Relying on Cummins' comprehensive after-sales service network, the supply of product accessories is sufficient and technical support is timely, which further improves the user experience.

In summary, Cummins Special Engine Oil CK-4 10W-30 takes the high-level API CK-4 standard as the core, integrates the advantages of fully synthetic formula, low-ash design and multi-dimensional protection. It accurately adapts to the lubrication needs of Cummins engines from National IV to National VI. It can not only provide long-term wear protection for core components, but also ensure the stable operation of the after-treatment system, while reducing fuel consumption and maintenance costs. For heavy-duty equipment users pursuing efficiency, reliability and environmental protection, this product is undoubtedly the preferred lubrication solution that balances performance and economy.