Mitsubishi 4DQ50 Engine: Specs, Configuration, Oil & Service Intervals

Mitsubishi 4DQ50 Engine Specs

The Mitsubishi 4DQ50 engine is a reliable and powerful diesel engine that has been widely used in various applications. Whether you are a mechanic or just an enthusiast, it is important to understand the specifications of this engine to ensure proper maintenance and performance. In this article, we will delve into the engine configuration, engine oil specs, and service intervals of the Mitsubishi 4DQ50 engine.

Engine Configuration

The Mitsubishi 4DQ50 engine is a four-cylinder, water-cooled diesel engine. It features a vertical inline arrangement, meaning that all the cylinders are aligned in a row. This configuration allows for efficient combustion and smooth operation. The engine has a displacement of 4.2 liters, providing ample power for a variety of applications.

The 4DQ50 engine is equipped with direct fuel injection, which enhances fuel efficiency and reduces emissions. It also features an overhead valve (OHV) design, where the valves are located in the cylinder head above the combustion chamber. This design promotes better airflow and combustion, resulting in improved performance.

Engine Oil Specs

Choosing the right engine oil for your Mitsubishi 4DQ50 engine is crucial to ensure optimal performance and longevity. Here are the recommended engine oil specifications:

• Oil Type: Diesel engine oil with a viscosity of SAE 15W-40 is recommended for the 4DQ50 engine. This oil type provides excellent lubrication and protection in various operating conditions.
• Oil Capacity: The engine has an oil capacity of approximately 9 liters. It is important to maintain the oil level within the recommended range for proper lubrication.
• Oil Filter: Regularly replacing the oil filter is essential to maintain the cleanliness of the engine oil. Ensure that the oil filter used is compatible with the 4DQ50 engine.

Service Intervals

Regular maintenance is vital to keep your Mitsubishi 4DQ50 engine running smoothly. Here are the recommended service intervals for this engine:

• Oil Change: It is recommended to change the engine oil every 5,000 kilometers or every 3 months, whichever comes first. This interval ensures that the engine is properly lubricated and protected.
• Oil Filter Replacement: The oil filter should be replaced during every oil change. This helps to maintain the cleanliness of the engine oil and prevent contaminants from circulating in the engine.
• Air Filter Replacement: The air filter should be inspected regularly and replaced if necessary. A clogged air filter can restrict airflow to the engine, affecting performance and fuel efficiency.
• Coolant Flush: Flushing the coolant system and replacing the coolant is recommended every 2 years or 40,000 kilometers. This helps to prevent overheating and corrosion within the engine.
• Timing Belt Replacement: The timing belt should be replaced according to the manufacturer’s recommendation, typically around 100,000 kilometers. A worn-out timing belt can cause serious engine damage if it fails.

Detailed Engine Specifications

By understanding the engine configuration, engine oil specifications, and service intervals of the Mitsubishi 4DQ50 engine, you can ensure proper maintenance and maximize its performance. Regularly servicing your engine and using the recommended oil will help prolong its lifespan and keep it running smoothly for years to come.