Originally Posted by Max...
Would this matter? What harm does the oil do?? I'm all diesel cars now but I always used already mixed post season fuel in my Focus and still do in my lawnmower.
That wouldn't do the Focus Cat Convertor much good.
Lawnmower - TC3W is different to air cooled two stroke oil. Lawnmowers (air cooled) run MUCH hotter and you stand a serious chance if the TC3W not working at that high a temp. Likewise air cooled 2stroke oil doesn't work as well at low temps so running an OB on it risks damage.
Small quantities will be fine I expect. Large quantities which based on my strimmer having a 250ml tank is not really a lot will be more likely to coz problems.
If someone has found TC3W that also meets air cooled spec please shout up.