Mixing Sea Foam Motor Treatment and Marine PRO [SOLVED]

Asked by Dennis G. In Michigan

I’ve been using the original Sea Foam Motor Treatment in my marine engines (200hp-9.9hp…115hp). These are all Mercury 4-stroke fuel injected or carb type motors. Can I start using the Marine PRO with fuel that still has some Sea Foam Motor Treatment in it? I have some cans left of the original from my last case. Can the two be mixed, or should they be kept separate?

Thank you!

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Jim D.
Jim D.
2 years ago

Hi Dennis,

Sea Foam Motor Treatment and Marine PRO are completely safe to mix. Feel free to add the Marine PRO.

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