Draining oil overnight, any difference?
- Thread starter abimanyu
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Has anyone actually witnessed this happening on an engine in reasonably good condition that was fully warmed up, then shut off, drained the oil overnight, re-filled with fresh oil and filter, then re-started within 24 hours? Please don't tell me about Billy-Joe-Jim-Bob's uncle Wilmer who knew someone that heard about it happening, I would like first-hand info please.
Seems to me that it would require an almighty loose oil pump for this to happen. Even a "quick" oil change will take the oil away from the pick-up tube. I have had to re-prime a few water (well) pumps but have never even heard of a good oil pump doing this so would like to enhance my knowledge. I have seen engines that were totally drained and then sat over winter start up with no problems (re-filled with oil, of course). Lots of engine manufacterers used to recommend this procedure for seasonally used farm engines. Reckon it don't sound like many farm boys on this forum though.
Joe
If there is nasty oil in there, I will dry-crank it with the filter off and the engine belches out a big 'hocker of old oil.
http://theoildrop.server101.com/cgi/ultimatebb.cgi?ubb=get_topic;f=24;t=001243
And, besides this case, I have witnessed it happening several times.
http://www.hastingsfilter.com/engineer/pdf/93-1.pdf
Interesting. Shows that we are never too old to learn. 40 years of wrenching and never have seen this one. It does appear that this could happen in a relatively short time frame as well. I have actually left drain plugs out for weeks before being able to get back to the project on farm equipment with no ill effects.
Having driven air-cooled Volkswagens for 35+ years I have always been very careful to drain them as completely as practiceable. No oil filter to remove the gunk, so I definitely want as much bad stuff in suspension as possible, then drain while hot so it stays in suspension and also drains as quickly as it can. Has anyone noticed that cold oil drains slower? I have literally driven those engines for hundreds of thousands of miles with 2K OCI's and no filter.
I have known VW owners who were lazy/careless about oil changes. They now drive Hondas or Subarus and hang out on internet websites boasting about their mechanical prowess.
Thanks for the entertainment,
Joe
Having driven air-cooled Volkswagens for 35+ years I have always been very careful to drain them as completely as practiceable. No oil filter to remove the gunk, so I definitely want as much bad stuff in suspension as possible, then drain while hot so it stays in suspension and also drains as quickly as it can. Has anyone noticed that cold oil drains slower? I have literally driven those engines for hundreds of thousands of miles with 2K OCI's and no filter.
I have known VW owners who were lazy/careless about oil changes. They now drive Hondas or Subarus and hang out on internet websites boasting about their mechanical prowess.
Thanks for the entertainment,
Joe
After removing the filter and the drain plug, I let all of the air out of one tire and then refill. I do this with every tire and I get approximately 0.05 ounces per tire procedure. I only change the oil during the daytime following a full moon to take advantage of the gravitational pull. Tests confirm that this will net an additional ounce or so. If allowed to drain through two full moons, an additional ounce is common, but that might not be possible for most people.
So which do you own, a Honda or a Subaru?
Gee seth, until right now, it never dawned upon me that someone could be legitimately hospitalized for their car care habits. . .
Prediction: this thread is within a half-dozen posts of being put out of our misery!
You'll have to admit ekpolk - it was fun. I sure learned a lot. I don't think I'll be draining my car as long as I used to (2+ hours). The difference is like adding a few grains of salt to the salt shaker.
We all have our own rituals. The fact that we're all different makes this world an interesting place to live - and forums like this possible
We all have our own rituals. The fact that we're all different makes this world an interesting place to live - and forums like this possible
You, oli, are a true-blue BITOGer! (aka, a psychiatrist's dream patient - no known cure and on whom lotsa money is to be made) But perhaps you should consider going the final step - draining your motor oil during the night time hours of a total planetary syzygy - the periodic cycle when all nine known planets in our solar system are aligned. (Consider using full synthetic motor oil 'cause the OCI will be absurdly long. The last total syzygy in this solar system occurred in 1982. If you intend to do an oil drain through two full syzygy episodes, note it in your last will and testament - as the Dixie Chicks observed, they's "A Long Time Comin'"...)
I let my oil drain as long as convenient, but never less than about 15 minutes. It certainly doesn't hurt to let it drain for 2 hours, while I go do something else, but it is not necessary to do so.
Neither. I haven't managed to wear out my Volkswagen (1969) yet.quote:
Originally posted by 427Z06:
So which do you own, a Honda or a Subaru?
It would appear obvious that it really doesn't make much difference how one changes their oil, just get it done. One thing I am certain of, they don't make cars (or oil) like they used to. And that's a GOOD thing. When I was a young lad (back when the world was still flat) it was considered quite good to get 100K out of an engine. Nowadays most anyone can get 200K out of most any modern vehicle using most any name brand oil changing most any way and time he pleases. This is actually one of the minor miracles of technology even though we gearheads like to take all the credit for our superior wrenching techniques.
Joe
I don't think the mfg would do a design that would allow the pump to loose prime from a normal drain, no matter how long. Funny, I did an extraction on a Audi 1.8t the other day, it might have remove MORE oil than a drain because the lifters wizzed and clacked like there was no tomorrow.
The newest TSB says that you need to drive counter clockwise in reverse. However, clockwise is still correct for those in the southern hemisphere.
IBTL
I drive a 2001 VW Passat V6, the drain hole and the oil filter both empty towards the driver side of the car. In order to get every last drop of oil out, I utilize the following proceedure in a clean room.
1. Put the car up on ramps and remove the belly pan.
2. Remove oil plug and drain oil.
3. Remove oil filter and drain oil.
4. Drive car in clockwise circles utilizing centripetal force to move as much oil out the holes as possible. You need to be careful however that you don't seize the engine.
5. When the oil pressure light comes on, pull back on the ramps and replace the plug with a new virgin plug and the oil filter with a new hermetically sealed filter. I wear latex gloves to avoid contaminating the gaskets.
5.5 Remove and destroy the filthy dirty dipstick and replace with a brand new virgin dip stick. (I want to remove every remaining drop of bad oil).
6. Remove the oil filler cap and seal it with plastic wrap so no dust finds its way into the heads.
7. Pour the oil very quickly so the sunlight or UVA/UVB doesn't degrade any of the additives.
8. Use a shop vac to vacuum out the filter cap area and elimiate any dust.
9. Put the belly pan back on and enjoy the remaining 5 minutes of the day.
I usually perform this ritual every 1000 miles, just to be safe.
heck, i am going to drain each car for a atleast a week, and then use compressed air at 300 psi to force out any of em old crudy EVIL oil.
wait what about the oil in the pan and the head, I say stuff a rag in and soak anything you can.
and then, wait gotta go, time for me to take my aricept, and other controlled items.
wait what about the oil in the pan and the head, I say stuff a rag in and soak anything you can.
and then, wait gotta go, time for me to take my aricept, and other controlled items.
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