Mercury Marine has been making world-class outboards and sterndrives for more than 75 years. We started back in 1939 in a small machine shop in Wisconsin, and we've grown into the largest builder of marine propulsion systems...

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Mercury Marine has been making world-class outboards and sterndrives for more than 75 years. We started back in 1939 in a small machine shop in Wisconsin, and we've grown into the largest builder of marine propulsion systems in the world. Number one on the water. And we didn't get there by sitting still.

  • Mercury Optimax/DFI oil is recommended for use in Mercury and Mariner Optimax and direct fuel injected DFI 2-cycle outboards
  • Maximizes the performance of Mercury and Mariner Optimax and DFI engines where reduced oiling rates and higher operating temperatures put increased demands on lubricants
  • Synthetic additives provide increased lubricity and resistance to scuffing
  • Mercury Optimax/DFI oil is recommended for use in Mercury and Mariner Optimax and direct fuel injected DFI 2-cycle outboards
  • Maximizes the performance of Mercury and Mariner Optimax and DFI engines where reduced oiling rates and higher operating temperatures put increased demands on lubricants
  • Synthetic additives provide increased lubricity and resistance to scuffing

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