Hi, Seems a lot off posts on which oil to use , well a friend off mine has a 1988 225hp Johnson which he has run all its life on 2 stoke premix the stuff that you use in your motorbike or lawnmover , he has always just pulled up at the petrol station and got them to do a premix 50:1 for him and filled the tank with premix , he never used the vro, now all my life i have been buying proper marine 2 stroke i have 1000 hours on my 225hp and i have just had to do a rebuild now his 225hp is still going strong with 1500hours , so the main question is whos right on wrong on oils , seems to be when you put two engines together one running on the proper oil and one running on the improper oil, the improper oil one keeps going , so who is right!!! steve