Well, I don't want to help beat a dead horse, but I remember reading a discussion in the archives about not changing the oil every 3000, but only the oil filter. Again, there was quite a division in the masses on that topic and I don't want to re-open the debate, but I have tried that method (if only out of curiosity) and haven't noticed a remarkable change in viscosity, engine temp., etc. Half of me says that oil is so relatively cheap that I should just change the whole works every time, but I guess there's also something to be said for not getting rid of seemingly good oil just because the ododmeter says to. Any additonal thoughts?