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5530 Extreme Marine 4-Stroke Inboard Outboard Full Synthetic Engine Oil 10W-30

High performance, full synthetic inboard outboard boat oil that protects engines from the effect of rust, corrosion, friction and wear.

Whether it’s for work or play, your boat needs to be ready when you need to be out on the water. Our Extreme Marine 4-Stroke Inboard Outboard Full Synthetic Engine Oil 10W-30 provides that reliability. 

Extreme Marine 4-Stroke Inboard Outboard Full Synthetic Engine Oil increases engine efficiency so you can get more service life from your boat’s engine. This premium, multi-grade, full synthetic boat oil delivers exceptional engine protection against rust and corrosion. Additionally, its outstanding detergency and dispersancy additives help control and prevent deposits from forming.

Further blended into our 10W-30 inboard/outboard oil are proprietary friction modifiers, Micron Moly® and Penetro®, which create a slippery, tenacious shield to prevent metal-to-metal contact. From low idle operation to higher RPMS, our inboard outboard boat oil reduces friction and wear, which results in increase engine life.

Extreme Marine 4-Stroke Inboard Outboard Full Synthetic Engine Oil is available in two viscosities: 20W-40 and 10W-30. It exceeds and is suitable for use: API Service Classification SM; NMMA FC-W and FC-W (Catalyst Compatible).

Extreme Marine 4-Stroke Inboard Outboard Full Synthetic Engine Oil offers improved engine durability and reliability to preserve the service life of your boat.

Performance Benefits

  • Exceptional rust and corrosion protection for seasonal and year-round use or storage.
  • Highly reliable high temperature, high shear performance to provide excellent oil thickness at high RPMs.
  • Superior engine protection during extended periods of idling.
  • Reduces friction and wear for longer component life.
  • Strong oxidation protection.

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