My wife’s CR-V dribbles on for hours like an old man with prostate problems. I mean even an hour still pretty fast
This could be a good thing or bad thing
This could be a good thing or bad thing
Extreme extended drain time: How much oil drips out over a week?
- Thread starter jmaster
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Oil changes scheduled for weekdays after work. Roll car in garage up on the ramps, immediately pull the plug , then the filter. Go inside and eat dinner. Back out after doing dishes, reverse order.
I'll remind the other posters that not all of us have just a 5qt sump. 15 in the f tree fitty so I do the same above since it takes a while longer.
What you could do is take a coat hanger and wrap it tightly with paper towel and insert into drain hole to soak up the stuff that sits below the drain hole opening. Then pronounce yourself a full member of the OCD community.
OTOH, trying to get every last drop out means this small amount of oil is no longer in the engine passageways and/or not as much oil coating parts. At least pre-fill the oil filter to limit the time taken to get up to full oil pressure. I prefer to pour 1/3-1/2 a quart of new oil in to help flush some of the last old oil out. Put the plug in relatively quickly (it's still dripping...but looks like new oil), prefill the new filter (except in my cartridge-style engines, where that's not so easy to do), get the new oil in and crank it up to get all the air out of the new filter. But, no matter what you do...it would be hard to ever detect a difference between techniques, as long as the correct oil and filter are used for the conditions, and both are changed at appropriate times.
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When the drops get down to about one every 3-4 seconds , I replace the plug .
Very interesting indeed to me. I really appreciate this insight.
This site has been soooooo bad for my OCD and OFAD (Oil & Filter Acquisition Disorder). I wouldn't have it any other way! Merry Christmas to all, and thanks to the BITOG community for always being interesting, if not always informative LOL =P
This site has been soooooo bad for my OCD and OFAD (Oil & Filter Acquisition Disorder). I wouldn't have it any other way! Merry Christmas to all, and thanks to the BITOG community for always being interesting, if not always informative LOL =P
If it's important or fun I'm a ...
hmmm, does a quarter of a quart count....
So you really want to get the last bit of oil out of there.....
My father (who was born in 1903 - so he grew up the early days of the automobile and the steam age) taught me to briefly start the car with the oil plug out so the last bit of oil in the oil pump would gush out. We would let the engine run for 2 or 3 seconds at most. And there would be a small gush of oil.
Do I think that was a good idea? Nope. I do not. In fact I'd recommend against doing that. It would take a few additional seconds for the oil pump to prime when you restart it - which wouldn't be very good either. And it did take a few seconds longer for the oil pressure to come up on the restart.
What I do now is let the pan drip while I take off the filter, put the funnel in place, open the new oil jug, wipe off the oil plug, put a bit of new oil on the filter gasket, wipe off the block where the filter makes contact, and put the new oil filter on. By then the oil is only occasionally dripping - and that's good enough.
I don't think a couple of ounces of old oil makes any difference. I don't fill the oil filter with new oil because I don't think that matters either.
My father (who was born in 1903 - so he grew up the early days of the automobile and the steam age) taught me to briefly start the car with the oil plug out so the last bit of oil in the oil pump would gush out. We would let the engine run for 2 or 3 seconds at most. And there would be a small gush of oil.
Do I think that was a good idea? Nope. I do not. In fact I'd recommend against doing that. It would take a few additional seconds for the oil pump to prime when you restart it - which wouldn't be very good either. And it did take a few seconds longer for the oil pressure to come up on the restart.
What I do now is let the pan drip while I take off the filter, put the funnel in place, open the new oil jug, wipe off the oil plug, put a bit of new oil on the filter gasket, wipe off the block where the filter makes contact, and put the new oil filter on. By then the oil is only occasionally dripping - and that's good enough.
I don't think a couple of ounces of old oil makes any difference. I don't fill the oil filter with new oil because I don't think that matters either.
I have taken it to another extreme. I noticed my Miata had a dry engine and normal OEM oil fill difference of .8 quarts. My OCI is 6 months. Got a great deal on Kirkland oil and changed it one month early, then at OCI put in the good stuff. The solution to the .8 quart dirty oil is dilution and removal. I changed the oil filter at the OCI, along with tire rotation exc….
5 quarts is 160 fluid ounces. If you put the drain plug back in with 4 ounces of old oil remaining, and added 5 quarts of fresh oil, the oil in your engine would be 97.5% new oil, 2.5% old oil. Said another way, you would have gotten 97.5% of the old crap out of the engine, and replenished 97.5% of the additives.
So, if your ideal normal oil change interval is say, 8000 miles, leave that 4 ounces in and change instead every 7800 miles.
So, if your ideal normal oil change interval is say, 8000 miles, leave that 4 ounces in and change instead every 7800 miles.
Interesting information. I'm not usually in a hurry when doing oil changes or other maintenance, so I let the oil drain for awhile, maybe a 1/2 hour to an hour. It depends what else is going on and if I am rotating tires or something, then I will let the oil drain while doing that.
I never understood some people who have to time everything they do and get it done as fast as possible. You will hear them say things like, "it only took 15 min to replace the alternator". It makes sense as a shop trying to get work done in a timely manner, but as an individual it always sounds odd to me. I guess I figure that its my own time and I'm going to relax and take my time doing things.
I never understood some people who have to time everything they do and get it done as fast as possible. You will hear them say things like, "it only took 15 min to replace the alternator". It makes sense as a shop trying to get work done in a timely manner, but as an individual it always sounds odd to me. I guess I figure that its my own time and I'm going to relax and take my time doing things.
That won't flush much of the old oil out because the old oil is dispersed throughout the engine. High spots and low spots, front and back. The pint will take the gravity path of least resistance. Might get 1/10 of it out or something like that.
And some from the bottom of the pan, where crud sits, which for me is the most important.
I'd have to know when to say when....
My patience lying on my back under a vehicle wanes with each passing year.
When you got a bad back, you get down there once, and crawl out and get up once. You never know if you'll be physically able to do it a second time
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