Mobilgard™ 5100 — 100 BN Two-Stroke Cylinder Oil | MAN ES Category II

100 BN

TBN mgKOH/g

SAE 50

Grade

2-Stroke

Crosshead Cylinder Oil

MAN ES

Category II Approved

WinGD

Approved

MHI

JEC Approved

Corrosive Wear Mitigation

Demonstrated ability to mitigate corrosive wear in highly corrosive engines across all ranges of operation — including the slow-steaming conditions where lower liner temperatures increase the risk of sulphuric acid condensation and corrosive attack on cylinder liners.

Optimised Feed Rate Capability

Balanced formulation allows operators to optimise cylinder oil feed rates — reducing lubricant consumption and operating costs without compromising liner and ring protection, particularly important for vessel operators managing lubricant costs on extended deep-sea voyages.

High Peak Firing Pressure Performance

Performance demonstrated at the elevated peak firing pressures and liner temperatures found in modern two-stroke engines — including the latest long-stroke, high-efficiency engine designs from MAN ES and WinGD where conventional cylinder oils may not provide adequate protection.

Superior Detergency

Superior detergency capability leads to potentially cleaner engine components — maintaining piston ring groove, liner and undercrown cleanliness across extended operating periods in residual-fuelled two-stroke engines where combustion deposits are the primary maintenance challenge.

Excellent Thermal & Oxidation Stability

Excellent thermal and oxidation stability can lead to reduced deposits and sludge formation in the cylinder liner area — maintaining clean operation and consistent lubrication performance across the full operating temperature range of modern high-output two-stroke engines.

Low Volatility — Film Retention

Low volatility ensures excellent lubricant distribution and oil film retention across the full liner height — maintaining the continuous protective oil film required for reliable ring and liner protection under the intermittent lubrication conditions of two-stroke crosshead cylinder lubricating systems.

Two-Stroke Crosshead Engines

Primary application — slow-speed two-stroke crosshead marine diesel engines on deep-sea vessels. MAN ES and WinGD engines on bulk carriers, tankers, container ships and offshore vessels operating on residual fuel.

Slow Steaming Operations

Specifically demonstrated for slow-steaming operation — where reduced liner temperatures increase corrosive wear risk and conventional cylinder oils may not provide adequate protection against sulphuric acid attack on liner surfaces.

Modern High-BMEP Two-Stroke Engines

Latest generation MAN ES and WinGD long-stroke engines with elevated peak firing pressures and liner temperatures — where Mobilgard 5100's performance has been demonstrated under the demanding conditions of modern high-efficiency engine designs.

MAN Energy Solutions (Everllence)

Category II — 2-Stroke Marine Engines

WinGD Ltd.

Liquid Fuel General Usage — 2-Stroke Marine Engines

Japan Engine Corporation (JEC)

Heritage MHI — 2-Stroke Engines