Additive Packages for Heavy Duty Engines: Enhancing Performance and Durability

Heavy-duty engine oils (HDEOs) are essential for the reliability and longevity of on-highway fleet engines, particularly under sustained high load conditions at elevated temperatures and in the presence of soot. Advanced additive packages in HDEOs are designed to meet these rigorous requirements, ensuring engines remain protected and efficient over extended periods of operation. This article explores how these additives contribute to increasing engine life, reducing downtime, and improving overall performance.

Increasing Engine Life

To maximise engine life and reduce downtime, additive packages in HDEOs focus on several key areas:

• Reducing Wear: High-performance additives minimise wear by providing a robust lubricating film, which protects engine components from metal-to-metal contact. This is crucial for engines operating under high load conditions where the potential for wear is significantly increased.
• Preventing Ring Sticking and Deposits: Additives prevent the formation of deposits on engine components, particularly around the piston rings, which can lead to ring sticking and subsequent engine damage. By keeping these areas clean, additives ensure smooth operation and enhanced performance.
• Dispersing Soot: Heavy-duty engines produce a significant amount of soot, which can thicken the oil and reduce its effectiveness. Advanced dispersants in the additive packages keep soot particles suspended, preventing them from clumping together and forming sludge.
• Maintaining Viscosity: Maintaining optimal viscosity is critical for engine protection. Additives ensure that the oil remains at the right thickness, providing consistent lubrication and protection even under extreme temperatures and high load conditions.

Chevron Oronite Advancing Heavy Duty Engine Oil Technology

Chevron Oronite is at the forefront of developing advanced additive solutions for heavy-duty engines. In preparation for the upcoming Heavy Duty Engine Oil (HDEO) category change, known as “PC-11,” Chevron Oronite is adopting a new formulating approach to meet a broader spectrum of performance criteria. This new category emphasises the need for improved fuel economy without compromising on wear protection.

Chevron Oronite’s innovative additive packages are designed to deliver significant fuel savings by supporting lower viscosity oils. Lower viscosity oils can reduce friction and improve fuel economy, which is increasingly important for fleet operators looking to reduce operational costs and environmental impact. However, these benefits must not come at the expense of engine protection. Chevron Oronite’s formulations ensure that even with lower viscosity oils, engines are safeguarded against wear, deposits, and soot accumulation.

Advanced additive packages are crucial for the performance and longevity of heavy-duty engines in on-highway fleets. By reducing wear, preventing deposits, dispersing soot, and maintaining viscosity, these additives play a vital role in increasing engine life and reducing downtime. Chevron Oronite’s commitment to innovation and advanced formulation approaches ensures that their additives meet the evolving needs of heavy-duty engines, delivering enhanced fuel economy and robust protection. This comprehensive approach not only helps in maintaining engine health but also supports operational efficiency and cost savings for fleet operators.

Chevron Oronite is a world-class developer, manufacturer, and marketer of lubricant and fuel additives and chemicals designed to help enhance the performance of all types of transportation and industrial equipment.