RETTOIL 10W-40 SL/CI-4 is a high-performance multigrade semi-synthetic oil designed to provide exceptional engine protection and efficiency. The base oil for this lubricant is derived from premium crude oil and is refined using advanced hydrocracking (HC) technology, ensuring superior quality and performance. The special renovative component, integrated into RETTOIL 10w40 SL/CI-4, ensures that engine durability, reliability, and power remain at peak levels throughout its service life.

Compatible with a wide range of engines, including those in passenger cars, vans, light and heavy-duty trucks, tractors, and buses. Highly effective for modern passenger car engines, including multi-valve, turbocharged, and diesel engines with direct fuel injection. Delivers superior protection throughout both the break-in period and regular operation, ensuring long-term engine health.  Enhances fuel efficiency by minimizing friction losses, particularly during startups and idling.