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An In-Depth Look at Haruto’s Lubricants for Trucks and Buses

At the core of the global automotive industry, and particularly within the realm of heavy-duty vehicles such as trucks and buses, is the need for exceptional lubricants that ensure optimal performance. As a long-standing contributor to Haruto, we have been a part of the process of converging the nuances of chemistry and mechanical engineering to create lubricants that not only optimize performance but also increase fuel efficiency and enhance vehicle longevity.

Engine Oil

Haruto’s premium synthetic engine oil, Haruto’s Energy Max 5W-40, is specially formulated to be the powerhouse for trucks and buses. This high-viscosity index solution reduces internal friction, minimizes wear and tear, and efficiently manages heat, providing a protective shield against corrosion. For the Indian market, we’ve designed a heavy-duty engine oil, the Haruto Energy Max 15W-40. This specially formulated product ensures high thermal and oxidation stability, ensuring peak engine performance under harsh operating conditions.

Gear Oil

Heavy-duty gear systems in trucks and buses demand high-quality lubrication. Haruto’s globally recognized gear oil, the Haruto Energy Max 75W-90, ensures smooth gear shifts and minimizes wear by resisting thinning under severe pressure. Our India-specific Haruto Energy Max 80W-90 provides excellent protection and exceptional load-carrying capacity.

Transmission Fluid

Haruto’s globally acclaimed transmission fluid, Haruto Energy Max 50, serves the dual role of a lubricant and hydraulic fluid. It maintains optimal viscosity across a wide range of temperatures, ensuring smooth operations in diverse climatic conditions. Our India-specific transmission fluid, Haruto Energy Max ATF, effectively reduces the risk of sludge and varnish deposits.


Haruto’s high-performance grease, the Haruto Energy Max EP-2, is tailor-made to meet the lubrication needs of components like wheel bearings, chassis joints, and universal joints. This semi-solid lubricant offers stability and effectiveness under high-temperature operations. For the Indian market, we have created the Haruto Energy Max AP-3, a multipurpose grease that offers superior mechanical stability and resistance to oxidation and corrosion.

Haruto’s offerings extend beyond these primary lubricants to encompass a wide array of other lubricants, coolants, and additives that are essential for the seamless operation of trucks and buses. Our formulations meet international standards and also cater to the unique challenges and requirements of the Indian market.

At Haruto, our constant innovation aims to deliver premium lubricants that continually surpass industry expectations, thereby ensuring that trucks and buses worldwide operate at their best. The ultimate goal is to foster smoother, more reliable journeys, leading to a more efficient and dependable transportation system. As we continue our journey, we remain steadfast in our commitment to innovation and the pursuit of global lubrication excellence.