Product Description
Samic Coast Guard 40 series is a range of high performance 40 TBN marine diesel engine oils formulated
with premium quality base stocks and high performance additive detergent technology to ensure optimum
performance and protection for highly rated trunk piston engines. They are designed to operate efficiently
in severe residual-fuelled medium-speed diesel applications found in marine and stationary power
industries. These TPEOs provide outstanding residual fuel compatibility and excellent engine cleanliness,
especially in crankcase, camshaft areas, ring belt and piston under crowns operating under severe
conditions.

Performance & Customer Benefits
• Excellent oxidation & thermal stability reduces deposits formation in piston under crown and ring belt
areas.
• Outstanding protection against ring and liner wear.
• Excellent protection from rust and corrosion even in presence of water.
• Excellent oil filtration and centrifuging capabilities.
• High detergency & low dispersancy capabilities, ensures engine cleanliness and releases contaminants
& water readily in centrifugal separators.
• High TBN reserves & retention, gives rapid neutralization of strong acidic combustion products and
provides long term protection against corrosive wear of ferrous & non-ferrous metals.

Specifications & Recommendations
Samic Coast Guard 40 series meets or exceeds following International and Builder specifications:
• API CF

Main Application
• Suitable for lubricating Medium-speed Trunk piston engines in industrial or marine propulsion and
auxiliary engines on deep sea vessels, burning on residual fuel oils with sulfur levels of 1.5% to 3.5%.
• Suitable for use in the latest model medium speed diesel engines operating with low cylinder liner
temperatures.
• Marine engine reduction gears, stern tubes & bearings and certain other ship-board applications.

Typical Physical Characteristics

The above figures are typical of blends with normal production tolerance and do not constitute a specification.