RE: dle 20 break in
Actually, I have found a time where more oil is not better. But it is because of the oil itself.
I was using Castrol TTS 2T Synthetic until recently (I changed to another brand because of the viscosity requirements of one of the enigne manufacturers I use plus I can get it even easier than the Castrol). For some reason, if you mix the Castrol at more oil than about 35:1 the engine runs pretty badly with a lot of coughing and spluttering - doesn't deastick, it just farts around a lot.