12-21-2015, 04:55 AM
Since I woke up it's been pouring rain. Might be the first day this month I won't get to ride. So my other bike needs it's oil and filter changed, might as well do that today. Was talking to one of my good riding buddies this morning about what he was doing instead of riding today, and he was basically doing the same to his bike on this rainy day.
He says "are you going to warm up the bike before draining the oil?"
I said "I always do, don't you?"
He says "nope, the last time I rode it the oil was warm and when I parked it, all the warm oil drained down into the sump".
I said "yea?" questioningly, like, where are you going with this?
He says "well, if you start it again you are just going to push dirty oil from the sump up into the top of the motor again, where it has to drain back down, so you can drain it from the sump".
I said "That's true, but won't it drain faster from the sump when it's warm?"
He says "Ever open a bottle of oil that's been sitting in your garage for a few weeks?"
I said "yea?" again wondering where he's going with this
He says "did you have any trouble pouring it out of the bottle?"
Hmm now he's got me pondering. Since I was a little kid I was told to heat up oil before draining it, but he's got me thinking now. All the dirty oil did drain down when I last came in from riding and parked the bike I have to assume. Do I really want to push that dirty oil back up into the top of my engine now?
Oil might not get changed until tomorrow. I have to work this out in my head. He may have a point.
What do you think?
He says "are you going to warm up the bike before draining the oil?"
I said "I always do, don't you?"
He says "nope, the last time I rode it the oil was warm and when I parked it, all the warm oil drained down into the sump".
I said "yea?" questioningly, like, where are you going with this?
He says "well, if you start it again you are just going to push dirty oil from the sump up into the top of the motor again, where it has to drain back down, so you can drain it from the sump".
I said "That's true, but won't it drain faster from the sump when it's warm?"
He says "Ever open a bottle of oil that's been sitting in your garage for a few weeks?"
I said "yea?" again wondering where he's going with this
He says "did you have any trouble pouring it out of the bottle?"
Hmm now he's got me pondering. Since I was a little kid I was told to heat up oil before draining it, but he's got me thinking now. All the dirty oil did drain down when I last came in from riding and parked the bike I have to assume. Do I really want to push that dirty oil back up into the top of my engine now?
Oil might not get changed until tomorrow. I have to work this out in my head. He may have a point.
What do you think?