What Should You Pay Attention to in Diesel Engine Oil? Expert Advice
1. Follow the Engine Manufacturer's Recommendations
Every engine has different needs. When choosing the most appropriate oil for your diesel engine, you should adhere to the viscosity and quality standards specified in your vehicle's owner's manual. This information is typically expressed in terms of SAE ratings (e.g., 15W-40 ) and API (American Petroleum Institute) classifications.
2. Pay Attention to Viscosity Level
The viscosity of engine oil refers to the fluidity of the oil, and this varies with the operating temperature of the engine.
- Cold Climates : Lower viscosity oils (e.g. 5W-40 ) provide faster circulation in cold weather.
- Hot Climates : Higher viscosity oils (e.g., 15W-40 ) offer better protection in hot conditions.
3. Understand API and ACEA Classifications
API (American Petroleum Institute) and ACEA (Association des Constructeurs Européens d'Automobiles) classifications determine the oil's performance and protection properties. API classifications for diesel engines typically begin with the letter "C" (e.g., API CI-4 ).
- API CI-4 : Suitable for older engines.
- API CK-4 and CJ-4 : Provides high performance in new generation diesel engines.
4. The Role of Additives
The additives used in engine oil are important to keep your engine clean and protect it from wear.
- Detergents and Dispersants : Prevents carbon accumulation.
- Antioxidants : Slow down the deterioration of oil.
- Corrosion Inhibitors : Protects the metal parts of the engine against rust.
5. Don't Ignore Oil Change Intervals
Changing your diesel engine oil regularly will help ensure the longevity of your engine. The frequency of oil changes depends on the manufacturer's instructions and the vehicle's operating conditions:
- Normal Use : Oil change is recommended every 10,000–15,000 kilometers.
- Harsh Conditions : Construction machinery or heavy-duty vehicles may require more frequent oil changes.
6. Certifications Determining Oil Quality
When choosing engine oil, pay attention to the certifications that determine the quality of the oil:
- TSE (Turkish Standards Institution)
- ISO 9001 Quality Management System
7. Price and Quality Balance
While there are many affordable and high-quality motor oil brands on the market, choosing solely based on price can be detrimental to your engine. Quality oils generally last longer and improve your engine's performance.
8. Oil Selection Based on Fuel Type
Oils formulated for diesel engines are not suitable for gasoline engines. Diesel engines require unique lubrication due to their high compression ratios. Therefore, use only oils designed for diesel engines.
9. Environmental Impact
It's important to be environmentally conscious when changing engine oil. Recycling used oil is a critical step in preventing environmental pollution.
10. Get Expert Advice
If you're unsure about oil selection or unfamiliar with your vehicle's specific needs, consult a professional. Choosing the right engine oil can make a big difference in your vehicle's performance.
Conclusion
Choosing diesel engine oil is one of the most important factors in your vehicle's performance and lifespan. Choosing the right oil and performing regular maintenance will make your engine more efficient, reliable, and last longer. Remember, quality engine oil may seem more expensive initially, but it will save you money in the long run.
Frequently Asked Questions (FAQ)
1. What is the difference between diesel engine oil and gasoline engine oil?
Diesel engine oils are designed to withstand higher compression ratios and greater soot buildup.
2. How should I choose oil viscosity?
You should choose an oil that complies with the viscosity values recommended by your vehicle manufacturer.
3. What is the difference between API CI-4 and API CK-4?
API CK-4 is suitable for newer engine technologies and supports lower emission standards.
4. How often should engine oil be changed?
In normal use, it is recommended to replace it every 10,000–15,000 kilometers.
5. What happens if the wrong engine oil is used?
The wrong oil can reduce engine performance, increase wear and tear, and lead to serious malfunctions.
6. Why are additives important?
Additives protect your engine against wear, sludge buildup and rust.
7. Why does diesel engine oil turn dark?
The darkening of the oil means that it has cleared carbon deposits and this is normal.
8. What should be done when engine oil is low?
An oil with the appropriate viscosity should be added immediately. If the decrease persists, the engine should be checked for leaks.
9. Which is the best brand of engine oil?
Well-known brands like Mobil, Shell, and Castrol offer reliable options, but choosing the right one for your vehicle is even more important.
10. How to dispose of used engine oil?
You must return used engine oil to authorized recycling centers. Discharging it into the environment is prohibited.