Castrol has introduced two powerful additions to its premium engine oil lineup with the launch of Castrol CRB TURBOMAX 10W-40 CK-4/E9 and Castrol CRB TURBOMAX 5W-40 CK-4/SN. Tailored to meet the specific demands of heavy-duty and light-duty commercial vehicles, these oils are enhanced with Durashield™ Technology, delivering advanced protection against heat, deposits, and engine wear.

Whether navigating highways under heavy loads or maneuvering through stop-and-go urban traffic, the CRB TURBOMAX range is designed to ensure smooth and efficient engine performance under extreme conditions—offering what Castrol calls “3X Protection” for longer engine life and lower operating costs.

The Castrol CRB TURBOMAX 10W-40 CK-4/E9 is a synthetic technology diesel engine oil crafted specifically for high-speed, four-stroke diesel engines, including those with exhaust gas recirculation (EGR) systems. These engines, often powering heavy-duty trucks, face grueling operating environments, from long hauls with substantial cargo to extreme weather.

Durashield™ Technology plays a key role in defending against the most common threats to engine health—heat-induced oil breakdown, deposit accumulation, and metal wear. By maintaining oil stability and reducing harmful build-ups, this oil helps extend the lifespan of truck engines and ensures consistent performance even under pressure.

For pick-up trucks, vans, and light-duty trucks, Castrol CRB TURBOMAX 5W-40 CK-4/SN offers full synthetic protection suitable for both turbocharged diesel and gasoline engines. Designed to cope with the rigors of urban driving—frequent stops, short trips, and rough road conditions—this variant provides robust engine defense and optimal efficiency.

Backed by test data, this oil demonstrated 50% better wear protection than industry standard limits, further underlining its superior ability to shield vital engine components and prevent premature wear. It’s an ideal choice for fleet operators or small business owners looking to prolong engine health and reduce maintenance costs.

Both variants of the CRB TURBOMAX range are compatible with biodiesel fuels, supporting the shift toward more sustainable transport solutions. In addition to offering powerful protection, these oils promote cleaner engine operation and may contribute to improved fuel economy—adding environmental and cost-saving benefits.