CODEX 15W40 DIESEL ENGINE OIL CJ-4

Codex Diesel Engine Oil 15W40 API CJ-4 is a specific type of engine oil designed for use in diesel engines.

Let’s break down what each part of this designation means:

1. Viscosity Rating (15W40): The “15W” in 15W40 stands for the oil’s viscosity characteristics. In this case, “15W” means that the oil has a lower viscosity (flows more easily) at low temperatures, making it suitable for cold weather conditions. The “40” means that the oil has a higher viscosity (thickness) at high temperatures, providing adequate protection for the engine when it’s operating at elevated temperatures. This oil is often used in a wide range of temperatures, making it versatile for various climates and applications.
2. API (American Petroleum Institute): API is an organization that establishes standards for engine oils and other petroleum products. The API classification system provides information about the performance and quality of engine oils. The “CJ-4” designation is an API service category specifically designed for diesel engines.
   • CJ-4: API CJ-4 represents a high-quality engine oil formulated for use in modern diesel engines. CJ-4 oils are designed to meet stringent emission standards and provide superior protection against wear, deposits, and soot buildup. They offer improved oxidation resistance and are suitable for engines using low-sulfur diesel fuel.

API CJ-4 oils are commonly used in on-highway diesel engines, such as those found in trucks and buses, as well as off-highway diesel engines used in construction, agriculture, and industrial applications.

It’s important to use the correct API service category recommended by your diesel engine manufacturer to ensure optimal engine performance and longevity. Always refer to your engine’s owner’s manual or consult the manufacturer’s guidelines to determine the appropriate oil specification for your specific diesel engine. Using the right oil is essential for maintaining the engine’s efficiency and durability.