UPDATE:
I bought 2 cans(16oz/EA) of this GUMOUT Multi-System TUNE-UP. I read the can label. These cans/bottles look just like the SEAFOAM Cans/Botles though, it is not the same product as GUMOUT's website compares to the SEAFOAM product...Play the video.
http://www.gumoutproveit.com/compare
The back label states...
Directions(in this order):
1)-ADD to FUEL: For optimal results, add entier can to the tank. Fill the tank with fuel and run to near empty before refueling. One pint(16oz) treats 18-21 gallons of gasoline or diesel fuel.
2)-ADD to OIL: Add one ounce per quart of oil. Immediately start the engine and run for 5-10 minutes to mix completely.
3)-Vacuum Intake Cleaner: May be used with engine decarbonizing equipment through the vacuum system to clean intake manifold, valves and combustion chamber. Follow recommended mechanical procedures for the equipment.
4)-Small 4-cycle engines: Add to gasoling using 3/4 to 1 onces per gallon fo fuel.
5)-Small 2-cycle engines: Ad to gasoling using 3/4 to 1 onces per gallon of fuel. Add 2-cycle oil as recomended by engine man ufacture. GUMOUT Multi-System Tune-Up does not replace the 2-cycle oil.
COMPLIES WITH THE FEDERAL ULTRA-LOW SULFUR CONTENT REQUIREMENTS FOR USE IN DIESEL MOTOR VEHICLES AND NON-ROAD ENGINES.