How to Use Marine Pro Fuel Treatment in Marine Engine Fuel


New Marine Pro Can

  • Cleans and lubricates entire fuel system
  • Reduces long-term engine wear
  • Helps protect against corrosion caused by ethanol & water
  • Stabilizes tank fuel up to 2 years


  • For regular fuel system maintenance, add 1 oz. per 1.5 gallons of gasoline. 1 can treats up to 30 gallons.
  • For cleaning, add 2 or more oz. per gallon to a low or partial tank – the more you add to fuel, the better it cleans!
  • For professional cleaning machines, use 50/50 mixed with gas.
  • For priming marine fuel filters, use 100% Marine PRO.
  • For 2-stroke pre-mix, add 2 oz. per gallon.
  • For stabilizing fuel, add 1 oz. per gallon.


Add Marine PRO to every tank of fuel to help your marine engine start faster, run smoother, and last longer. It works through fuel injectors and carburetors to safely remove harmful engine residues and deposits from fuel passageways, intake valves, pistons and chamber areas.

Marine PRO is safe and effective in all 2- and 4-stroke gasoline marine engines, inboard and outboard. Marine PRO only contains petroleum-based cleaning & lubricating ingredients. It does NOT contain harsh chemicals or abrasive detergents that could harm your engine. Marine PRO does not contain alcohol.


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NEW! Sea Foam Marine Pro – Complete marine fuel system treatment

Help your marine engine run smoother and last longer with Sea Foam Marine Pro – just pour it in! Add to every tank to clean fuel injectors and carburetor passageways, cleans and lubricates critical upper engine areas, stabilizes fuel, and helps clean and protect your entire marine fuel system.

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