In the context of increasingly tightening emission regulations and diesel engine technology constantly upgrading, choosing the right lubricant becomes more important than ever. More than just lubrication, modern engine oil also has to meet many strict criteria in terms of performance, durability and compatibility with the exhaust gas treatment system. The following article of Madin Chem will answer what is the CK-4 API standard and what you need to know about High exhaust engine oil.
1. What is the CK-4 API standard?
API CK-4 is the standard heavy diesel engine oil standard issued by the American Petroleum Institute (API) in 2016. This standard is designed for modern engines that meet strict emission regulations such as EPA 2017. API CK-4 replaces the Old standards such as CJ-4, CI-4+, CI-4 and CH-4, with better anti-oxidation, soot control and reduced abrasion. CK-4 standard oil helps protect the engine, is compatible with exhaust treatment systems such as DPF, SCR and ensures stable operating performance under heavy load conditions.
2. Why was the API CK-4 standard born?
The introduction of the API CK-4 stems from major changes in diesel technology and increasingly tight emission control requirements globally.
Requirements are increasingly demanding
Emission standards such as Euro 4,5,6 and EPA 2017 force diesel engines to integrate exhaust treatment systems such as DPF, SCR and EGR. These systems are very sensitive to the chemical composition of the lubricant, especially the content of ash, phosphorus and sulfur (SAPS). If the oil is not suitable, equipment such as DPF is easily clogged, reducing performance and increasing maintenance costs. Therefore, API CK-4 was born to ensure that the lubricant is both engine protection and compatible with the modern exhaust gas treatment system.
State-of-the-art engine technology
Today’s diesel engine operates with very high fuel injection pressure, which can exceed 2,500 bar, helping to increase combustion efficiency and reduce fuel consumption. However, this also increases the temperature and pressure in the combustion chamber, making the oil easily oxidized, losing viscosity and forming residue. Old standards like CJ-4 no longer meet well under this condition. The CK-4 API is developed with more stringent inspection requirements to ensure oil maintains stability and protects the engine effectively in harsh working environments.
Demand to prolong the oil change cycle
In the transportation and industry, the reduction of operating costs is important. Enterprises need to prolong the oil change time to reduce stop time and maintenance costs. This requires the oil to have high durability, good oxidation resistance and keep it stable for a long time. The CK-4 API meets this requirement by improving soot control, wear resistance and maintaining longer lubrication performance, helping to optimize operating costs.
3. Highlights specification of high exhaust engine oil API CK-4
The API CK-4 lubricant is designed to meet more rigorous tests than the old standard, providing stable performance under heavy operating conditions.
Better anti-oxidation (~20%)
CK-4 oil is about 20% more resistant to oxidation than CJ-4, helping to limit viscosity degradation when operating at high temperatures. This helps reduce the formation of sludge and soot in the engine, keeping the lubrication system clean and stable. As a result, parts such as pistons, crankshaft and silver shafts are better protected during long operation.
Better soot control (~35%)
One of the important improvements of the CK-4 API is that the soot handling ability is about 35% better. The oil can keep the soot particles in a dispersed state, avoiding the accumulation of large deposits causing blockage. This is especially important with modern diesel engines, where more soot is generated due to high injection pressure and complex combustion cycles.
Reduce foaming, high cutting stability
CK-4 oil improves foam resistance and increases shear stability, helping to maintain stable viscosity during use. The reduction of air bubbles helps the lubrication system to work continuously, avoiding the phenomenon of local oil shortage. At the same time, the high shear stability helps the oil not to be degraded when under high mechanical pressure, ensuring a stable lubrication film.
Low SAPs content (DPF protection)
API CK-4 controls the low content of sulfate, phosphorus and sulfur ash, which protects emissions treatment systems such as DPF and SCR. Low SAPS content limits ash accumulation in DPF, extends equipment life and reduces maintenance costs. This is an important factor that makes CK-4 oil suitable for engines that meet high emission standards.
4. Benefits of Using API CK-4 Lubricants
The use of API CK-4-standard lubricants brings significant benefits to the engine and operating costs.
Protect the engine in harsh conditions
CK-4 oil reduces the formation of residues, sludge and soot in the engine, especially when operating at high temperatures and heavy loads. Thanks to its good resistance to oxidation, the oil maintains a stable viscosity and creates a sustainable lubrication film for important parts such as piston, silver shaft and crankshaft. This reduces the risk of damage and prolongs the engine life.
Compatible with exhaust gas treatment system
CK-4 oil is designed to be compatible with systems such as DPF, SCR and catalyst. Low SAPS content helps limit ash accumulation, reduce the risk of congestion and maintain exhaust treatment performance. As a result, the vehicle can meet environmental standards and reduce the maintenance cost of the exhaust system.
Extend the oil change cycle
Thanks to its good anti-oxidation and soot control, CK-4 oil can extend the shelf life up to 80,000-100,000 km depending on operating conditions. This helps to reduce the number of oil changes, reduce stop time and save maintenance costs for businesses.
Energy saving
The API CK-4 allows the use of lower viscosity oils such as 10W-30 or 5W-30, which reduces friction in the engine. As the friction decreases, the engine operates more efficiently and consumes less fuel. The savings can reach from 0.5% to 1.5%, providing a clear benefit for long-distance vehicles.
reduce engine wear
The CK-4 oil improves the protection of high-load parts, especially the spindle silver. Thanks to the maintenance of a stable oil film, the oil helps to reduce wear and limit damage under high pressure conditions. This is an important factor to increase the durability and reliability of the engine.
5. Objects to use API CK-4 Oil
API CK-4 lubricants are suitable for a variety of vehicles and equipment operating in harsh conditions.
Heavy trucks and transport enterprises
Modern trucks use Euro V and Euro VI engines that need oil to meet CK-4 standards to ensure performance and durability. For transport enterprises, the use of CK-4 oil helps to reduce fuel costs, prolong the maintenance cycle and limit incidents when the vehicle is operating continuously over long distances.
Specialized vehicles, projects
Vehicles such as dump trucks, cranes, concrete mixers often operate with large loads and harsh conditions. CK-4 oil helps protect the engine in dusty environments, high temperatures and unstable operating cycles, thereby reducing the risk of damage.
Construction machinery and energy
Equipment such as excavators, bulldozers, diesel generators need high reliability in operation. CK-4 oil helps maintain stable performance, reduces residue accumulation and ensures the engine is always ready to operate. This is especially important for continuous power supply systems.
Buses and watercraft
Public buses and watercraft usually operate for hours a day, requiring strict emissions control. CK-4 oil helps to protect the engine, reduce the frequency of maintenance and ensure that the vehicle always meets environmental standards during operation.
Epilogue
Understanding what the CK-4 API standard is and what you need to know about High exhaust engine oil will help users choose the right oil, protect the engine and optimize operating costs in the long run. In addition to standard lubricants, the exhaust gas treatment system also needs to be given due attention to ensure efficiency and longevity. This is why many businesses trust to choose solutions from Madin, especially high quality AdBlue® by Madin solution, which helps to reduce emissions, protect engines and meet modern environmental standards.
Contact information
MADIN COMPANY LIMITED
- Hanoi warehouse: 756B Nguyen Khoai – Thanh Tri – Hoang Mai – Hanoi
- Hotline: 0886634634
- Email: [email protected]
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