Master Marine OB 4T defends marine engines against corrosion, heat, and relentless pressure. It is formulated specifically for modern 4-stroke outboards, keeping engines clean, cool, and confident.
4-Stroke Outboard Engines
· Leisure & Recreational Boats
· Commercial Marine Use
· Adapted to Saltwater & Corrosive Marine Environments.
Anti-Corrosion Shield
· Cleaner, Stronger Engine
· Heat & Load Stability
· Longer Engine Life
· Smooth, Reliable Power
MIL-PRF-2104H, NATO O-278
4L, 20L, 205
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