4-Stroke Marine Engine Oil SAE 25W-40

Lucas Oil Products, Inc.

4-Stroke Marine Engine Oil SAE 25W-40

Lucas 4-Stroke Marine Engine Oil SAE 25W-40 is designed to improve wear protection and increase catalyst life in newer inboards using catalytic converters. Meets or exceeds NMMA® FC-W (CAT) performance.

Can be used in automotive applications where API SM oils are called out for. Also has applications in 4-stroke outboards and 4-stroke personal watercraft. Lucas 4-Stroke Marine Engine Oil SAE 25W-40 is fortified with special synthetic additives that coat all moving parts to guard against rust, corrosion and moisture during long storage periods. Meets or exceeds MERCRUISER® sterndrive and inboard marine performance requirements.

Key Benefits

  • Improves wear and protection
  • Increases catalyst life
  • Meets or exceeds NMMA FC-W (CAT) Performance
  • Special additives protects against rust, corrosion, and moisture



  • #20677 - 1 Quart (Case of 6) - 946 mL
  • #10693 - 5 Gallon Pail (1 Pail) - 18.9 L
  • #10694 - 55 Gallon Drum (1 Drum) - 208 L



Product Spec Sheet Technical Data Sheet
Safety Data Sheet Safety Data Sheet

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Kelly Thoman usdes Lucas Fuel Treatment in 2004 Toyota Tacoma

This is the first time I ever used Lucas Oil Products and let me tell you I will never use anything else. My engine idle was rough and it also dieseled quite a bit. Now my engine sounds, runs and gets the fuel mileage I should be getting. My Tacoma now gets 28-32 MPG thanks to this product. Thanks again Lucas Oil Products. Keep up the good work. Kelly

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