I have used original Sea Foam for years in my vehicles and outboard motors. Marine PRO is new. I will start using it in all my outboard motors.
Question#1: What is the difference between the original Sea Foam and Marine PRO?
Question#2: What would be the preferred product for 4 cycle snowmobile engines that also are used in a wet environment? If it makes a difference, my snowmobile is a 2012 Ski Doo with the 600 ACE four cycle engine.