Motorboat Engine Oil Better Than Regular Motor Oil?

The verdict

1. 1

   Pennzoil Platinum

   “In my opinion, stick with the oil that's designed for a car.”

   Buy on Amazon ↗

Other picks

• Avoid

  Honda Marine

  “in a modern car, you definitely don't want to have too much phosphorus and zinc because that'll cause a problem with the catalytic converter”

  Buy ↗

Everything tested 3

• Honda MarineHonda
  Amazon ↗
• Pennzoil PlatinumPennzoil
  Amazon ↗
• Paint Shaker (used for shaking the oil for foaming)Paint
  Amazon ↗

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