CI-4/SL/CF-4 Engine Oil Additive Package is a comprehensive formula designed for use in diesel and gasoline engines. It combines the key benefits of the CI-4/E7 diesel engine oil additive package and the SL/CF-4 gasoline engine oil additive package, which contains a range of engine oil performance improvers. These additives are blended with the base oil to improve the oil’s lubricity, fuel economy and durability.
This additive package contains a balanced combination of detergents, dispersants, antiwear agents, antioxidants and friction modifiers, providing several key benefits:
- Engine Cleaning: The detergents and dispersants in the additive package help keep your engine clean by preventing the formation of varnish, sludge and deposits. This helps maintain optimal engine performance and fuel efficiency.
- Wear protection: The anti-wear agent in the additive package forms a protective film on the engine surface to reduce friction and wear. This helps extend the life of critical engine components such as piston rings, camshafts and bearings.
- Anti-oxidation: slow down the oxidation rate of engine oil and extend the service life of engine oil. The antioxidants in the additive package help prevent oil oxidation, which can lead to the formation of harmful acids and sludge. This helps maintain oil viscosity and overall engine protection.
- Reduce Friction: Friction modifiers in the additive package reduce friction between the engine’s moving parts, such as piston rings and cylinder walls, thereby improving fuel efficiency and reducing engine wear.
- Corrosion Protection: Corrosion inhibitors in the additive package protect engine metals from rust and corrosion caused by water or acidic by-products in diesel and gasoline engines.
By using CI-4/SL/CF-4 engine oils with this additive package, both diesel and gasoline engines can benefit from enhanced performance, improved protection and extended oil drain intervals.
The CI-4/SL/CF-4 designation represents a combination of API (American Petroleum Institute) specifications for engine oils. Let’s break down each specification:
- CI-4: CI-4 is an API specification primarily focused on heavy-duty diesel engines. It’s designed to provide enhanced performance, protection, and cleanliness for modern diesel engines, including those equipped with exhaust aftertreatment systems like diesel particulate filters (DPF) and exhaust gas recirculation (EGR) systems. CI-4 oils typically offer improved wear protection, soot control, and oxidation resistance compared to earlier specifications.This category applies to high-performance, four-stroke diesel engines introduced between 1998 and 2002. CI-4 oils offer protection against soot control, wear, oxidation, and oil thickening due to soot contamination.
- SL: SL is an API specification for gasoline engines. It’s aimed at providing high-performance lubrication and protection for gasoline engines, particularly those with advanced design features such as turbocharging, multi-valve technology, and variable valve timing. SL oils offer improved deposit control, wear protection, and compatibility with emission control systems.This category applies to gasoline engines introduced before 2000. SL oils provide basic protection against wear and tear under moderate operating conditions.
- CF-4: CF-4 is an API specification for diesel engines, similar to CI-4 but slightly older. It provides performance and protection for diesel engines, including those operating under severe conditions such as high loads, high temperatures, and extended drain intervals. CF-4 oils offer good wear protection, soot control, and oxidation resistance for older diesel engine designs.This category signifies diesel engine oils suitable for older high-speed diesel engines built before 1994. CF-4 oils offer protection against factors like soot, wear, and oxidation in these operating conditions.
An additive package for an engine oil meeting the CI-4/SL/CF-4 specifications would typically include a blend of additives aimed at meeting the requirements of both gasoline and diesel engines.