hello, so ive been gettin the bug for summer and been thinking a lot about my boat... i have a 1979 100hp Evinrude that i use while trolling. The problem i have is on very calm days I get a lot of 2-stroke smell in the boat that seems to annoy my fishing partners (though i must be immune). My question is, is there any type of 2-stroke oil or additive that will cut back the smell? thanks! im currently using Nautilus brand 2-stroke oil.