Yeah,don't trust Tomos oil injection COMPLETELY. If you don't disconnect it, you should still add at least 1.5 oz.high quality synthetic or semi-synthetic oil PER GALLON to your gas mixing can.If you DO disconnect it, add 3.5-4.o oz. per gallon.
I have calculated my oil-injection to be only 75:1 since kitting(which lowers your injection rate since you use more gas per mile at the same fixed rpms of the Tomos pump).
So I add 2 oz. per gallon to my mixing can(when I fill my 2 gallon can at home, I add 4 oz. of Pennzoil Marine synthetic blend). don-ohio