ALESTA ML 50-20 is a high-performance cylinder lubricant specifically developed for two-stroke crosshead marine diesel engines operating on low-sulfur fuels. Designed to meet the lubrication requirements of modern marine engines, it provides effective protection against corrosive and abrasive wear while ensuring the precise sludge control required by low-sulfur fuels.
This oil features a balanced formulation that combines controlled alkalinity, superior detergent properties, and strong oil film strength. This ensures effective lubrication of the piston rings and protection of the cylinder liners. The optimized Base Number (BN) level prevents adverse effects associated with excessive lubrication, such as excessive ash formation, while also ensuring that any acidic compounds that may form are adequately neutralized. ALESTA ML 50-20 is particularly suitable for engines operating under variable load conditions. It delivers high performance in applications where piston cleanliness, ring mobility, and liner surface integrity are critical. By reducing friction and wear, it enhances cylinder performance, minimizes deposit formation, and supports smooth, reliable engine operation. The product is recommended for use in modern, low-speed two-stroke crosshead marine engines—particularly in main propulsion systems—that use low-sulfur fuel in compliance with global emission regulations such as IMO.
ALESTA ML 5020
ALESTA ML 50-20 was developed to meet the cylinder lubrication needs of two-stroke crosshead-type marine diesel engines running on low-sulfur fuels. It provides reliable protection for cylinder liners, pistons, and piston rings, particularly in the main propulsion systems of large marine vessels, under high-load and long-term operating conditions. In modern marine engines with varying operating loads, it supports cylinder surface cleanliness and mechanical strength by providing balanced protection against acid deposits caused by combustion. It is recommended for low-speed marine engines operating continuously under heavy loads to ensure a long service life and consistent performance.
WinGD (Wärtsilä); Everllence (MAN ES); Mitsubishi
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Automotive Oils
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Total: 30 Product
