Quantity of Oil left in engine after oil change?

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Old 31 Jan 2006, 03:45 am   #1 (permalink)
Flash Gordon
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Default Quantity of Oil left in engine after oil change?

Can anyone explain to me why it is that when I drain the oil from my
engine (1MZ-FE) only about 3 litres comes out when its capacity is 4.7
litres and it was previously showing as "full" on the dipstick?

This has happened before. Is there some other tube or plug which needs
to be undone in addition to the sump plug?

Do you have to take the oil filter off to allow extra oil to drain?

I drained the oil, replaced the sump plug, then replaced the oil filter
and then put in about 4 litres and now the reading on the dipstick is
about twice the length of the "full" mark!!

I don't think I better drive it anywhere till I figure this out??

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Old 31 Jan 2006, 04:26 am   #2 (permalink)
Sharx35
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Default Re: Quantity of Oil left in engine after oil change?


"Flash Gordon" <agdunne@hotmail.com> wrote in message
news:1138700737.331138.234140@g43g2000cwa.googlegr oups.com...
> Can anyone explain to me why it is that when I drain the oil from my
> engine (1MZ-FE) only about 3 litres comes out when its capacity is 4.7
> litres and it was previously showing as "full" on the dipstick?
>
> This has happened before. Is there some other tube or plug which needs
> to be undone in addition to the sump plug?
>
> Do you have to take the oil filter off to allow extra oil to drain?
>
> I drained the oil, replaced the sump plug, then replaced the oil filter
> and then put in about 4 litres and now the reading on the dipstick is
> about twice the length of the "full" mark!!
>
> I don't think I better drive it anywhere till I figure this out??
>


Uh, why would you change the oil and NOT the filter, too?


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Old 31 Jan 2006, 04:39 am   #3 (permalink)
Flash Gordon
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Default Re: Quantity of Oil left in engine after oil change?

Yes, your right. I did change the filter as well, but I'm wondering
about the sequence. Does removing the filter free up more oil to drain
out of the sump plug? I replaced the sump plug BEFORE I removed the
filter and changed it. Would this account for the difference in
collected waste oil from what the specs state or is it some other
problem such as sludge?

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Old 31 Jan 2006, 04:47 am   #4 (permalink)
Sharx35
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Default Re: Quantity of Oil left in engine after oil change?


"Flash Gordon" <agdunne@hotmail.com> wrote in message
news:1138703983.527642.47790@f14g2000cwb.googlegro ups.com...
> Yes, your right. I did change the filter as well, but I'm wondering
> about the sequence. Does removing the filter free up more oil to drain
> out of the sump plug? I replaced the sump plug BEFORE I removed the
> filter and changed it. Would this account for the difference in
> collected waste oil from what the specs state or is it some other
> problem such as sludge?


I stand to be corrected but a used oil filter just might hold upto a litre
(U.S. quart, approx.) of oil.


>



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Old 31 Jan 2006, 04:48 am   #5 (permalink)
Sharx35
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Default Re: Quantity of Oil left in engine after oil change?


"Flash Gordon" <agdunne@hotmail.com> wrote in message
news:1138703983.527642.47790@f14g2000cwb.googlegro ups.com...
> Yes, your right. I did change the filter as well, but I'm wondering
> about the sequence. Does removing the filter free up more oil to drain
> out of the sump plug? I replaced the sump plug BEFORE I removed the
> filter and changed it. Would this account for the difference in
> collected waste oil from what the specs state or is it some other
> problem such as sludge?


Sorry, but I don't know about the effect of the sequence of replacing the
sump pump plug etc..

>



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Old 31 Jan 2006, 04:57 am   #6 (permalink)
Flash Gordon
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Default Re: Quantity of Oil left in engine after oil change?

The specs state that if your changing the oil for that size engine and
the oil filter as well, then you can expect to pour 4.7 litres into it
or 4.5 litres if your not changing the filter.

Now before I changed the oil the dipstick was ready just below full but
when I drained the oil, I only got 3 litres in the drain pan. So that
leaves approximatley 1.5 litres unaccounted for. To make things
weirder, the dipstick still showed nearly full AFTER I had drained all
the oil out. I checked this 3 or 4 times. Sounds like a blockage or
sludge or something??

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Old 31 Jan 2006, 07:27 am   #7 (permalink)
Jason James
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Default Re: Quantity of Oil left in engine after oil change?


"Flash Gordon" <agdunne@hotmail.com> wrote in message
news:1138700737.331138.234140@g43g2000cwa.googlegr oups.com...
> Can anyone explain to me why it is that when I drain the oil from my
> engine (1MZ-FE) only about 3 litres comes out when its capacity is 4.7
> litres and it was previously showing as "full" on the dipstick?
>
> This has happened before. Is there some other tube or plug which needs
> to be undone in addition to the sump plug?
>
> Do you have to take the oil filter off to allow extra oil to drain?
>
> I drained the oil, replaced the sump plug, then replaced the oil filter
> and then put in about 4 litres and now the reading on the dipstick is
> about twice the length of the "full" mark!!
>
> I don't think I better drive it anywhere till I figure this out??


Start the engine, let it run for a few seconds,..shut it down and re-dip the
sump.It'll probably be nearer to normal then once the oil galleries and
filter are full of circulating oil.

Jason


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Old 31 Jan 2006, 08:25 am   #8 (permalink)
Daniel
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Default Re: Quantity of Oil left in engine after oil change?

If it were me, I'd be removing the front valve cover (new gasket on
hand) to check for sludge.
Sludge can block the return drain holes that allow oil to drain back
into the pan.
You would also see totally black color oil on the dipstick, whereas
when it is changed regularly, and then observed periodically one can
see the color gradually darken over time, but never go completely
opaque prior to the next change.
Bottom line, if you drain the oil hot, it's supposed to come out. Even
better is if you can let it drain over night, but that's only because
it continues to drip for quite some time and helps remove the "dregs"
not a significant volume of used oil.
Also, the reading on the dipstick is the indicator of level in the oil
pan so go by that.
You may want to check auto-rx.com

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Old 01 Feb 2006, 01:03 am   #9 (permalink)
johngdole@hotmail.com
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Default Re: Quantity of Oil left in engine after oil change?

You should be able to drain about 90% out. The other 5% is in the
filter (you need to cut it open but it's not worth the trouble). And
very little should remain in the oil pan. Removing the oil filter lets
just a little more into the pan, but not worth changing your routine.

I agree with others that you may have a blockage in the cylinder heads.
The rear bank is a bear to get to in that engine, but that's where the
PCV system vents and likely where the
sludge is building up.


Flash Gordon wrote:
> The specs state that if your changing the oil for that size engine and
> the oil filter as well, then you can expect to pour 4.7 litres into it
> or 4.5 litres if your not changing the filter.
>
> Now before I changed the oil the dipstick was ready just below full but
> when I drained the oil, I only got 3 litres in the drain pan. So that
> leaves approximatley 1.5 litres unaccounted for. To make things
> weirder, the dipstick still showed nearly full AFTER I had drained all
> the oil out. I checked this 3 or 4 times. Sounds like a blockage or
> sludge or something??


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