Yes but its the particles too small for your 20um filter to grab that will kill you.
Now if your running a micron bypass filter - different story.
Done to death
- Thread starter Mike1108
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Now if your running a micron bypass filter - different story.
Just drain and refill. Dont lose your sleep over it.
Gee....OCD costs unnecessary money. I have a term I coined for this forum. A BITOG "money flush".
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My personal OCD is trying to change the fluids on exactly the milage I have pre determined milage 5.000 or 6.000 and staying with the same brand as long as easily possible
This goes up against my other oil change OCD and that's changing on a holiday
I always try for Easter and Halloween ....when they both happen to line up its like a super OCD bonus
This goes up against my other oil change OCD and that's changing on a holiday
I always try for Easter and Halloween ....when they both happen to line up its like a super OCD bonus
4wd
$50 site donor 2026
Did this on my L84 once - mainly out of curiosity when folks drip forever (comes out instantly) and building confidence in my new extraction pump …
Some people do some pretty stupid things IMO to try and get every last drop of oil out. I heard of people running the engine with the drain plug out trying to get those last couple of ounces out. IMO you can kill an engine with kindness or overthinking things too.
I've only done this when changing from oil brand/product line to another to (in my mind) help keep the mixing of the old to new as minimal as possible. When I switched from Amsoil Signature Series to HPL Premium Plus PCMO, I even shot this short video to see what I could see (slightly more exciting than watching paint dry). Basically, I saw a quart of HPL being wasted. You can hear, and see the effects, as the wind picks up as the quart flows straight through from the fill to drain holes. Warning: do not watch with sound on and a full bladder!
I no longer worry about the last drop when not switching brand/product line, as my worry has shifted in my old age as to whether I'll be able to get up off the ground after changing the oil and filter.
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4wd
$50 site donor 2026
I guess it must freak out some folks to keep the filter on for a 2nd OCI and leave a 1/2 quart of “ dirty” oil in the filter and oil galleries. And no, no chance I’ll drain the filter and put it back on. 
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Patman
Staff member
A lot of C5 Corvette owners will jack up the rear end in order to tilt the car so that a little bit more oil comes out. But these are the same guys who are changing oil once a year even if they have only driven 1000 miles
A LIGHT BULB MOMENT JUST HAPPENED.
Have one or more self-proclaimed OCD members do an oil change (inclusive of filter).
Run the engine briefly.
Drain the oil, put it into a clear container and see how much the remaining old oil darkens the new!
Have one or more self-proclaimed OCD members do an oil change (inclusive of filter).
Run the engine briefly.
Drain the oil, put it into a clear container and see how much the remaining old oil darkens the new!
No OCD here. I just dump the oil with the filter. Most of the time it's still dripping a bit from the pan. Been doing this since the 70's. No issues with the engines.
That's OK, but running an engine with the drain plug out for a few seconds hoping to get a little more oil out is insane IMO.
I definitely have OCD - but this befuddles me that people just make ideas up about how things work to satiate their OCD. In my case 1.25 quarts stay in the galleries, and I can drain out about 5.375 quarts if I wait all day. Do you think an extra 0.1 quarts matters at all.
Same people that argue your VVT won't work if you use a different grade oil, or the oil passages and clearances are different on an engine that specs 0W-16. People who don't know how engines work or are built making stuff up out of thin air.
Same people that argue your VVT won't work if you use a different grade oil, or the oil passages and clearances are different on an engine that specs 0W-16. People who don't know how engines work or are built making stuff up out of thin air.
+1...closing in on 60 yrs old, with a bum back that has fusions and arthritis. Just want to get the job done ASAP.
No need to do this. When I've changed brand/product line of one oil to another, the used oil analysiss have shown mixing between the old and new. It isn't until the second OCI after switching where the used oil analysis and VOA of the new oil start looking similar.
^^Ha-ha, I know there's no need to do this. I was being playfully facetious.
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