Originally Posted by fraz
I don't know where people come up with this stuff but that is false. I have been using some or all of these products together and have not had a single problem. The only problems I have had with my motors is death from old age.
I run an O.S.TZ and in the booklet that came with the engine, under "care & maintenance" it says "Do not inject after-run oil into the carburator as this may cause the O-rings inside the carb to deteriorate". but it DOES say to inject after-run oil into the egine itself. But I too use WD-40 to clean my engine but now I thinking twice...?