UNDERSTANDING LOW VISCOSITY ENGINE OIL IN HEAVY-DUTY SEGMENT AND ITS FORMULATION CHALLENGES

In recent years, the use of low-viscosity engine oils in the heavy-duty segment has been on the rise, driven by the need for better fuel efficiency, lower emissions, and enhanced engine performance.

- 

Low viscosity oils, typically found in grades such as 5W-30 or 0W-20, offer significant advantages, particularly in reducing internal engine friction during cold starts and under high-load conditions. By minimizing friction, these oils help improve fuel economy and reduce greenhouse gas emissions, which is essential in meeting increasingly stringent environmental regulations, such as Euro VI and EPA 2027 standards.

Emissions from the Transport Sector in India

The transport sector contributes 25% of global carbon dioxide (CO2) emissions from fuel combustion. In India, it ranks as the third highest CO2 emitting sector, with road transport responsible for over 90% of emissions within this category. Heavy-duty vehicles, particularly those over 12 tons, account for approximately 60% of fuel consumption and greenhouse gas (GHG) emissions in the heavy-duty vehicle fleet. Consequently, regulations are in place to lower fuel consumption and emissions from diesel-powered trucks and buses. To comply with Indian CAFÉ regulations, energy-efficient lubricants are the most cost-effective solution, as they typically do not necessitate modifications to vehicle designs.

Energy Losses in the Engine