Good analogy or parable or metaphor (I don't know which fits best) fergy!
Develop a faster finger? I use my first finger, which seems to be a little more heat resitant. As soon as the spring comes out, I drop it onto a piece of newspaper. The screen doesn't seem to be as hot, but it goes on the paper too. Within a minute or two, they're cool enough to handle.How do I keep from burning my little pinky when I stick it in to remove the spring, washer, and screen?!
I changed the oil today, a completely satisfying experience, as always. But I have a little blister on the end of my finger from the hot oil, even though I let it drain completely before going after the spring. I don't want to stick a screwdriver in there with that delicate filter screen. Maybe a popsickle stick? A chop stick? Or is there some kind of fingertip technique that I need to try?
Wow! That would certainly make it easier to handle the bike and the oil. On the other hand, I've always changed the oil while hot to make sure that I got as much of the old oil out as possible. (Unlike some, though, I leave the bike on the center stand throughout the procedure, never tilting the bike on the side stand.)I always change the oil cold. That's what the shops do. Hot or cold, there's no way to get all the oil out.
Just because a shop changes the oil cold, does not mean it is the right way to do it. I suspect if the shop does change it cold, that it is just quicker and costs less for labor for them, than to warm the engine up for 10 minutes. It is no skin off their nose if more dirt is left in the engine after the oil change. Warm, recently circulated oil holds more dirt in suspension than cold oil that has been sitting at rest does. Warm oil also drains faster, and you will get more out of the crankcase, unless you are willing to let the bike sit for an extended period to drip the cold oil.I always change the oil cold. That's what the shops do.
Hot or cold, there's no way to get all the oil out.