Can anyone help me?? - I've just got my first gas engine, a G62. I've seen a load of stuff up here about how you should use a castor based oil for breaking the engine in and only then change over to a synthetic. So, being a good boy, I went out and tried to buy some castor based 2 stroke.. I ended up with Castrol Super TT but now have doubts as to whether this is wholly mineral based or if there is some synthetic..... has anyone use this to break in a Zenoah??? Is it any good - I'm in the UK and so many of the oils that I have seen discussed are difficult/impossible to find over here. (PS - I have also bought some Castrol TTS once the engine is broken in)

Help is much appreciated!!