These oils have an exceptionally low ash content. The low ash content is advantageous because ARUM T-MONO SAE 40 minimizes the formation of engine deposits, including ash deposits, in the combustion chamber and exhaust system. Excessive ash content can lead to detrimental buildup and reduce engine efficiency. By having low ash content, these engine oils help maintain the engine's cleanliness and ensure optimal performance throughout their service life.

These engine oils offer excellent resistance to oxidation and corrosion. Oxidation resistance is crucial because ARUM T-MONO SAE 40 prevents the oil from breaking down due to exposure to high temperatures and oxygen. Corrosion resistance ensures that engine components remain protected from harmful corrosive elements. By maintaining these protective properties, these engine oils safeguard the engine's vital parts, such as pistons, bearings, and valves. This protection contributes to prolonged engine life, improved performance, and reduced maintenance requirements.

These engine oils are formulated using natural, paraffinic base oils (group I) combined with special additive packages. The base oils, specifically group I paraffinic oils, serve as the primary foundation for these engine oils. They offer good lubrication properties and stability. The special additive packages incorporated into the formulation enhance the oils' performance characteristics. These additives typically include anti-oxidation agents, corrosion inhibitors, and detergents. Together, the base oils and additives create a well-balanced formula that provides protection against oxidation and corrosion while ensuring the engine's smooth operation.

The higher SAE 40 grade is particularly suitable for areas where the engines operate under high tropical circumstances. In regions with consistently high temperatures and demanding operating conditions, such as tropical climates, engines can experience increased stress and heat. The SAE 40 grade provides a thicker oil viscosity, which helps maintain proper lubrication and engine protection under these challenging conditions. It ensures that the engine operates efficiently and minimizes wear and tear, contributing to longer engine life.

These engine oils are perfectly suitable for the more traditional car portfolio, including engines with typical service characteristics. They are well-suited for naturally aspirated, turbocharged, or supercharged diesel engines operated in moderate to severe-duty service. Additionally, these oils are suitable for certain heavy-duty gasoline engines. Therefore, they offer versatility and can provide reliable performance and protection for a wide range of vehicles, making them an excellent choice for various automotive applications.

These engine oils have the API SF/CD specification for passenger car engine oils. The API SF/CD specification signifies that these oils meet the requirements set by the American Petroleum Institute (API) for passenger car engine oils. It ensures that these engine oils provide adequate performance and protection for a wide range of engines, including those in traditional passenger cars. The API SF/CD specification encompasses engines with typical service characteristics, such as naturally aspirated, turbocharged, or supercharged diesel engines operated in moderate to severe-duty service, as well as certain heavy-duty gasoline engines.