How to Rate the Quality of Outboard Motor Oils

Outboard motor oils are used on most small and medium-size commercial and pleasure boats. Ultimately, the type of motor oil you prefer and regularly use is up to the owner. Some will claim that certain brands or mixes work better for different boats, but the reality is that much is related to opinion. There certainly are differences in the motor oils; however, experts and boat enthusiasts would typically be the only ones who notice.

Instructions

    • 1

      Check the manual for your outboard motor. See if it lists a particular type of motor oil that is necessary or particular additives to avoid.

    • 2

      Read the ingredients on the packaging of several different motor oils. There may be slight differences in additives between manufacturers.

    • 3

      Opt either for a generic motor oil that is cheaper in price or a name brand that may be more expensive. You may want to base the choice on reputation or quality rather than price.

    • 4

      Compare the ingredients between the two types of motor oil. In general, both generic oil and name brand oil will work in the average outboard motor.

    • 5

      Explore how all brands of oil sold must match government regulations. Preferences and differences, then, are either brand-based or additive-based.

    • 6

      Test the product(s) in your outboard motor. All may work, but some may work better. Take notice of how your outboard motor and boat perform while using a particular oil. The ultimate choice should be based on your knowledge and experience of the product and its compatibility with your motor.