Where does all the oil go???????

Bushman5 · **Joined:** Sat Jul 11, 2015 11:05 am **Posts:** 278

over 6 liters goes in.....have the M1-301 oversized filter.......yet come drain time.......only 4.4 Liters comes out.......

ran the jeep down the freeway at 120KM's of spirited driving for three hours, got home, let the CRD sit for several hours, pulled and wiped the dipstick, at MAX mark, pulled the oil drain plug and filter (drained the filter too), yet consistently I only get 4.5 liters of used oil draining out.

Got lots of vehicles, every single one the amount of oil that goes in , is what comes out. Mazda truck - 4.5 liters in, 4.4 liters OUT, Tracker - 4 liters in , 3.95 liters OUT...

where the hell does the oil hide in the CRD ???????????????

no wonder they recommend constant oil changes.........half of it stays behind.

i shouldn't be surprised though with these POS! :evil:

flash7210 · **Posted:** Wed Jan 04, 2017 6:43 am

If only 4.4 L drains out, 1.6 L is hidden somewhere inside, and you add 6 L to fill it, that would mean you have 7.6L in the crankcase. Which would definetly be over the max on the dipstick.

So either:
A. You are not accounting for the oil trapped in the oil filter
B. Your measurments are inaccurate
C. Both a and b

You are also very likely to be loosing some oil between oil changes especially if you are filling it all the way up to max line on the dipstick. This engine naturally wants to spit oil out the crankcase vent. The higher the oil level, the more it wants to spit out.
I fill mine mine to halfway between max and min.

Bushman5 · **Joined:** Sat Jul 11, 2015 11:05 am **Posts:** 278

My oil change drain pan was dry and empty when I did the oil changes . Drained the filter, and poured the used oil into a empty Mobil 1 TDT oil jug, which holds 4.4 Liters. Filled it to the top, nothing left in the oil change pan.

Can't get any more accurate than that. I could press the oil filter and squeeze out maybe half a liter more but where is the rest ?

My Moroso oil catch can after the CCV only fills up with maybe 2 table spoons of oil , and the retun hose and CAC hoses are oil free.

Has to be somewhere in the engine thd oil pools and sits, unable to freely drain.

Jay ne Ohio · **Joined:** Sun Dec 12, 2010 5:49 pm **Posts:** 216

I have 5 CRD's.... Some of them "use" more oil than others.

I have one that seems to send a lot of oil out through the breather. It gets sucked into the turbo and keeps the intercooler hoses well lubed :lol:

This will lead to a lot of oil-soot crusty deposits in your intake IF your EGR is still functioning as the EPA wanted it to......

I have another that leaks a little out the drain plug. I should rethread it and put a Fumoto valve, but never really concerned me much (parked outside). I have one with a Fumoto, two with rubber plugs, and two with the original plugs.

The more miles, the more oil these things will use between changes as rings wear. The ring gap gets bigger as they wear. The liner gets a little residual oil in the ring gap and it makes it into the combustion area.

Ceearedeedriver · **Joined:** Fri May 06, 2016 8:44 pm **Posts:** 177

Bushman5 wrote:

My oil change drain pan was dry and empty when I did the oil changes . Drained the filter, and poured the used oil into a empty Mobil 1 TDT oil jug, which holds 4.4 Liters. Filled it to the top, nothing left in the oil change pan.

Can't get any more accurate than that. I could press the oil filter and squeeze out maybe half a liter more but where is the rest ?

My Moroso oil catch can after the CCV only fills up with maybe 2 table spoons of oil , and the retun hose and CAC hoses are oil free.

Has to be somewhere in the engine thd oil pools and sits, unable to freely drain.

To drain the filter are you piercing it on the bottom and letting it drain through the hole you made? They can retain quite a bit of oil that won't drain out unless you do this.

I'm guessing your 4.4L jug holds more than 4.4L. A new jug is usually quite a bit below the brim.

If the oil is pooling you would expect the refill to be equivalently less.

Bushman5 · **Joined:** Sat Jul 11, 2015 11:05 am **Posts:** 278

Yes. I cut open the filter for inspection of the element.

I think next oil change I'll leave the CRD at work in the shop and let the oil drain out all night. Then remeasure the amount collected.

PZKW108 · **Joined:** Sun Apr 06, 2014 5:23 pm **Posts:** 461

Is your oil pretty dark after the oil change ?

If the engine retain as much as 1.6 liter as you say it should show !!

Bushman5 · **Joined:** Sat Jul 11, 2015 11:05 am **Posts:** 278

^ yes,the fresh oil gets dark instantly after oil change.

old stuff coming out is dark.

joe_ · **Posted:** Thu Jan 05, 2017 12:44 am

Bushman5 wrote:

Has to be somewhere in the engine thd oil pools and sits, unable to freely drain.

You have to be either burning or leaking the missing oil. If it was getting trapped somewhere in the engine, that would only affect the drain amount the first time.

For the sake of argument, say the engine traps 1.6 liters of oil. You add 6L and then drain out 4.4L, with the last 1.6L trapped. When you go to refill the engine, you pour in 6L again, but the total amount of oil in the engine is now 7.6L because the 1.6L of old oil is still in there. Then when you go to drain it the second time, 1.6L once again remains trapped, leaving 6L to drain out. That wouldn't explain the missing 1.6L each time.

Mountainman · **Posted:** Thu Jan 05, 2017 1:00 am

Yeah, the full line is over full on these engines (thanks Chrysler or VM?) Anyhow, you quickly suck through the ccv that 1/3 quart or so, and then say 1/3 quart in the filter, and the engine burnt 1 quart in 5k miles? That's how much mine eats, but that was with a lot of heavy towing and 200k miles, and me loving the torque too much.

thermorex · **Posted:** Thu Jan 05, 2017 9:47 am

Why don't you look on the dipstick right before your oil change and see the level. Then do oil change and check again the level?

69Hcode · **Posted:** Thu Jan 05, 2017 6:40 pm

After you change it, Do you start it for a little bit then let it sit and check it again?

PZKW108 · **Joined:** Sun Apr 06, 2014 5:23 pm **Posts:** 461

Next oil change make sure of these :

- warm up the engine
- check the oil level on the dipstick before dropping the oil
- make sure you'r on level surface
- open the filling cap before taking the drain plug and the oil filter (no need to drain overnight...)
- once you have the new filter and 5.5 liter of fresh oil in, run the engine turn it off and let it sit a few minute before adjusting the level to the mark it was before.

Then do your math and if it still a good differance before and after, there's something is wrong !

geordi · **Posted:** Thu Jan 05, 2017 8:45 pm

Normal fill is 6.4 quarts (I can't convert liter in my head, sorry) with the M1-301 the conventional wisdom is increase that to 7 quarts.

As for the engine spitting more with higher level, I have been running an experiment on my CRDs since I got them back together. No EGR, I added 8 quarts after the oil changes and have been watching. The only time it has shown consumption or wasting into the intake was when the engine was allowed to idle for extended periods. So it seems the oil loss might be through the turbo.

Bushman5 · **Joined:** Sat Jul 11, 2015 11:05 am **Posts:** 278

^ Hiya Geordi! Happy New Years!

6.4quarts = 6.06Liters

I think you may be onto something.....

my EGR is disabled (unplugged) and the ports are shimmed (blocked off) .

If the oil is casually working its way OUT of the turbo and then into the exhaust , then that would explain the very light oil smell in my exhaust when climbing BC Canada mountain roads....

I know the rings are not worn, the mechanic that did all the work when my rockers fugged up last year (year before? cant remember) did a compression test and it still had very very high factory compression. (dont have the numbers handy,will need to get ahold of Pawliks Auto)

PZKW108 wrote:

Next oil change make sure of these :

- warm up the engine
- check the oil level on the dipstick before dropping the oil
- make sure you'r on level surface
- open the filling cap before taking the drain plug and the oil filter (no need to drain overnight...)
- once you have the new filter and 5.5 liter of fresh oil in, run the engine turn it off and let it sit a few minute before adjusting the level to the mark it was before.

Then do your math and if it still a good differance before and after, there's something is wrong !

ran the truck for three hours (spirited driving , 100 - 120KM's on the freeway) then let it sit for a bit and checked the dipper stick. At Max. Then i drained it.Oil cap removed, filter removed (and cut open and drained). Parking surface was dead level concrete floor underground parking lot.

69Hcode wrote:

After you change it, Do you start it for a little bit then let it sit and check it again?

yes.

my measurements were from the used oil that drained out...i was only able to fill a Mobil1 TDT oil jug (4.4 liters , 4.8 right to the top) and there was just a little left over in the plastic drain pan.

Going to scope the dipper tubeand see if there is a blockage perhaps.....perhaps there is a pool of oil in the dipper tube and everytme i check it it shows the same amount....

mass-hole · **Posted:** Fri Jan 06, 2017 10:16 am

Mine did the same thing the other day. I have the Amsoil remote bypass setup so mine takes about 9 qts and when I changed it this weekend I only got about 6 out.

thermorex · **Posted:** Fri Jan 06, 2017 1:21 pm

Out of curiosity, does any of you that see less old oil at oil changes check the oil level before, or during the oil life?

My crd spits everything over 1/2 dipstick through the provent draining hose. Not sure if will get "eaten" without provent. It stabilizes at 1/2 dipstick and roughly stays there for thousands of miles.

lacabrera · **Posted:** Fri Jan 06, 2017 4:28 pm

thermorex wrote:

Out of curiosity, does any of you that see less old oil at oil changes check the oil level before, or during the oil life?

My crd spits everything over 1/2 dipstick through the provent draining hose. Not sure if will get "eaten" without provent. It stabilizes at 1/2 dipstick and roughly stays there for thousands of miles.

x2 I over cooked it and filled it to the full mark on my last oil change and has been slowly filling my catch can.

PZKW108 · **Joined:** Sun Apr 06, 2014 5:23 pm **Posts:** 461

thermorex wrote:

Out of curiosity, does any of you that see less old oil at oil changes check the oil level before, or during the oil life?

My crd spits everything over 1/2 dipstick through the provent draining hose. Not sure if will get "eaten" without provent. It stabilizes at 1/2 dipstick and roughly stays there for thousands of miles.

with no provent and the original sut up it will accumulate in the intercooler !!!

Where does all the oil go???????

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