Can I mix Sea Foam Marine PRO with other additives in my 5.0 Volvo boat engine [SOLVED]

Recently bought a used boat with a 5.0 Volvo engine that has been winterized and I’m not sure which additive the prior owner used. Can I add your product to the existing product and be safe? I typically use your regular Sea Foam treatment. Thanks.

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Jim D.
Jim D.
2 years ago

Hi Charles,

Yes, Sea Foam and/or Marine PRO can be safely combined with other stabilizers. Both Sea Foam products are made from 100% petroleum ingredients, so it won’t cause problems when added to fuel containing other treatments.