Frankol 5W30 CJ-4/SM Synthetic oils are produced to be used in heavy duty engines. Regular flow of the lubricant withholds the deposits formation in the engine. These contribute in maintaining cleanliness and smooth running of the engine thus giving more value for your money. Ultimately, Frankol 5W30 CJ-4/SM Synthetic oils offer strength to the engine, protection to the emission system and sustain excellent performance in all weather conditions.