Which engine oil classification is often recommended for DTNA base engines?

The recommended engine oil classification for DTNA base engines is typically API CJ-4 or higher. API CJ-4 is specifically formulated for diesel engines, addressing the needs of modern, high-performance diesel engines while providing enhanced protection against wear, oxidation, and thermal degradation. This classification also reflects the higher standards for emissions and compatibility with diesel particulate filters, making it suitable for the latest engine technologies.

In contrast, the other classifications, such as API SL, API SF, and API SM, are geared more towards gasoline engines or older diesel engine requirements. They do not meet the specific needs for modern diesel engines in terms of performance, emission control, or protection standards that API CJ-4 provides. Therefore, using API CJ-4 or higher ensures that the engine operates efficiently and lasts longer under various driving conditions.