Shell Gadinia AL 30
Shell Gadinia AL 30 is a premium marine diesel engine oil developed specifically for medium-speed trunk piston engines operating on distillate fuels. The lubricant is designed to provide reliable protection and efficient operation in modern marine engines, where operating conditions can place significant stress on lubricating oils. Its carefully balanced formulation supports stable lubrication performance and helps maintain engine cleanliness in demanding shipboard environments.
A key advantage of Shell Gadinia AL 30 is its ability to control oil consumption in modern engines where cylinder liner lacquering can be a major operational concern. Under severe operating conditions such as high combustion temperatures, elevated cylinder pressures and high-pressure fuel injection, lacquer deposits can form on cylinder liners. These deposits can fill the liner honing pattern, reducing oil control and leading to increased lubricant consumption. Shell Gadinia AL 30 is formulated to effectively manage liner lacquer formation, helping maintain normal oil consumption levels and stable engine operation.
The lubricant also provides excellent piston and crankcase cleanliness, which supports efficient engine performance and reliable operation over extended service periods. By helping prevent deposit formation on internal engine components, the oil contributes to smoother engine operation and reduced maintenance requirements. Its strong load-carrying capability also allows it to perform effectively in reduction gear applications commonly found in marine propulsion systems.
Shell Gadinia AL 30 also provides a high level of protection against bore polishing, another condition that can lead to increased oil consumption and reduced engine efficiency. By maintaining the integrity of cylinder liner surfaces and preserving the oil control characteristics of the engine, the lubricant helps support long-term engine reliability and consistent performance.
The oil is recommended for highly rated medium-speed marine diesel engines operating under high load or overload conditions. In addition to engine lubrication, its multifunctional characteristics allow it to be used in a variety of general shipboard applications, including reduction gears where specialist lubricants are not required. This versatility makes Shell Gadinia AL 30 a practical solution for operators seeking a dependable lubricant for multiple onboard systems.
Typical physical characteristics include kinematic viscosity of 94.5 mm²/s at 40°C and 11.4 mm²/s at 100°C, density of 0.893 kg/L at 15°C and flash point above 200°C. The lubricant provides strong load carrying capability with an FZG failure stage of 12 and a base number of 15 mg KOH/g, supporting effective acid neutralisation and engine protection during operation.
