Morris HD30 is expertly engineered for classic engines that demand high-performance lubrication and effective heat dissipation. Its specialised formula ensures optimal protection for air-cooled, flat tappet engines by maintaining the right level of Zinc (ZDDP). This prevents premature wear on camshafts, followers, and push rod tips, ensuring longevity and reliability.

Unlike modern multi-grades and synthetics that rely on alternative additives, Morris HD30 delivers the proven benefits of Zinc without excessive levels that are actually detrimental to the life of an engine. With 1,200ppm of Zinc, it provides the perfect balance for cool running and enhanced durability in high-stress engine conditions.