the issue with this is that highly airetad oil lacks the proper lubricating properties. It therefore causes accelerated wear. In my opinion, if your having this happen something is wrong You should be aware that the "highly aerated oil" invariably rises to the top of the oil supply, and that the engine feeds from the bottom. Thus the oil actually being used by the engine does not generally include any air. The aeration is in part a natural by product of the fact that the return oil pump outruns the oil incoming to the sump as a part of its design function to keep the sump "dry". It inevitably slurps air and pumps the resulting foam back on top of the oil in the reservoir, and as pointed out, the oil itself will have a much lower tendency toward foaming when up to temperature. It is also true that certain oils have a much greater tendency to foam than others. Lucas, for example, performs quite poorly in foaming tests compared with many others. You might try switching brands to see what comes of that.