Checked my oil "seemed" to be a bit low so grabbed the bottle and put 200ml in, having just let the engine idle for 5 mins then let it cool for 2 or 3 mins (what I should have done on the first check ) it appears the oil is WAY above max I also appear to have mixed Castrol 10w30 and Castrol 10w40 What do I do now please ?
Drain some out. I'm another who wouldn't worry about mixing the oil unless it was different types i.e. mineral + semi; semi + fully synth etc, and even then it would probably be ok.
As already said, different grades isn't a problem, just drain the excess off and be happy running 10w33 lol Andy B