I have a 150hp outboard motor on my boat and it really DRINKS the gas. As you can guess, I allways have alot of two cycle oil around for it. I usually use Penzoil TCW-3 oil, which says it meets all the manufacturer's requirements for both outboards and lawn equipment. I have heard that running this type of oil in a chainsaw or weed wacker is not a good idea. Is this true? I like to use left over gas from my boat in my 2 cycle equipment. Also, is there any problem running the premium gas my boat must have in the small engines?