Power That Never Stops: Unmatched Protection for Heavy-Duty and Everyday Engines
Experience the ultimate in engine protection with Rocksoil Hi-Speed’s premium lubricant lineup. Whether you are managing a demanding commercial fleet or maintaining a personal passenger vehicle, our products ensure excellent wear resistance. The Super Diesel Plus (API CI-4, SAE 15W-40) is specifically engineered to meet the rigorous demands of high-performance diesel engines, extending the life of your engine and components while optimizing overall performance under the most extreme loads.

Formulated with Superior Technology
Our Super Diesel Plus features cutting-edge lubrication technology, including API CI-4 certification, a mark of reliability and industry-standard quality for heavy-duty engines. Its SAE 15W-40 viscosity grade provides exceptional soot control and thermal stability. Complementing this is our Super Petrol (SAE 10W-50 Multi-Grade), formulated to deliver advanced lubrication for petrol engines, ensuring optimal flow and protection across varying temperatures. Both highly refined formulations reduce engine wear and mitigate sludge, keeping your engines clean and efficient for longer periods.

Versatility in Packaging and Usage
Available in a bulk 20-liter pack for Super Diesel Plus and standard consumer sizes for Super Petrol, this product range caters to both large-scale commercial applications and individual vehicle owners. Perfect for heavy trucks, buses, and industrial machinery requiring API CI-4, as well as everyday petrol vehicles needing a robust 10W-50 grade, these oils address the unique needs of vehicles exposed to demanding conditions. Whether you’re performing routine fleet maintenance or preparing for intensive repair work, these are dependable choices.

Why Choose Rocksoil Hi-Speed Lubricants?
Investing in high-quality motor oil is an essential step toward ensuring your vehicle’s longevity and performance. With Rocksoil Hi-Speed Super Diesel Plus and Super Petrol, you receive products that prioritize wear resistance, help optimize engine output, and meet internationally recognized standards. Choose these oils to keep your engine running smoothly and efficiently under challenging conditions, delivering the relentless power your vehicle demands.