With the oil leakage you described, I personally not be too concerned. Obviously, you want to keep an eye on it, but the chances of it getting worse in the near future are, poor to none. Even with a "spotlessly clean" engine, a leak that small could be very difficult to find under all the hoses, belts and other items attached to a present day engine.
On the subject of "oil loss", I'm not sure what you consider a significant amount. With 150K on the engine a little oil consumption is just due to normal wear. This holds true for any engine reguardless of how well they are taken care of. Honda makes a good little motor. With reasonable care, they go a long way. Their biggest enemys are, lack of engine oil caused by "major" oil leaks and overheating. Other than that, they just keep on pumping. You sound concientious enough that I don't think either of the above will ever happen. Drive safe.
Monday, March 9th, 2009 AT 3:10 PM