Cummins 5.9l Burns oil

[Peter Barnowski]

Cummins 5. 9l Burns oil?

 

[goodguys75]

all motors burn oil..... just depends on what extent

 

[Peter Barnowski]

My friend has one thats manual trans that doesnt take any at all.

Mine takes very much.

 

[goodguys75]

My friend has one thats manual trans that does take any at all.

Mine takes very much.

thats not normal... I never have to put any oil in between changes... and I have 550,000 miles o wait just 55,000 miles and it is an 06:-laf

 

[jgillott]

OK... Lots of thing that you need to describe first before we can help you out.



1) How much oil are you using over what time period? How fast are you going through a quart?



2) Any external leaks or oil build up? If so, where are they located?



3) Any evidence of blow-by? Is there smoke or oil coming out of the breather, dipstick, etc?



4) Have you checked to see if an oil supply or return line off the turbo could be leaking?



5) Have you checked the turbo itself for evidence of bearing or seal failure?



6) Does the truck run OK? Any exhaust smoke, what color, and under what conditions?



Start with these and see if we can narrow it down a little for you.

 

[Peter Barnowski]

well it takes about 1 1/2 liters in 1000km. I drive alot. I usually go about 100km-120km.

We didnt try anything on it.

 

[goodguys75]

we live south of you... we dont know what those numbers mean..... dont worry. . you will get an answer soon. . this is a great web site... ... and welcome also

 

[Peter Barnowski]

Sorry it takes 0. 396258079 gallons in 621 miles while driving 60-75miles.

 

[Prairie Dog]

Sorry it takes 0. 396258079 gallons in 621 miles while driving 60-75miles.

Wow, that's a lot of oil. I would take off the hose to the turbo and look for oil. If it gets bad enough it can start running on the oil and will only shut down when it's all gone.

 

[S.Morris]

Yes check the turbo.



Did it start all of a sudden or did it gradually build up to that amount.



Are there any oil leaks? Do you see blue smoke in the exhaust?

 

[Peter Barnowski]

To s. Morris I bought it this way and the smoke is all okay.

To Paririe dog What do you mean?

 

[S.Morris]

Prairie Dog means you have two posts going with the same question. .



This oil consumption is excessive and not normal.



Like was mentioned, easy things first, check inlet and outlet side of turbo (internally) for signs of oil residue. Make sure turbo oil return line is not kinked while you are there.



This amount of oil should show up somewhere. Are there any major oil leaks?

Was rear main seal dry at transmission shop?



If you rev engine up in neutral to about 2000rpm (and hold steady)do you start to see smoke at the exhaust ?

 

[Peter Barnowski]

It Is actually Coming from the top and then dripping to the bottom.

 

[JFought]

peter... ... .
from the top of_________.
Give us details...
We can't read you mind.

 

[jgillott]

Post a picture of the leak.

 

[Peter Barnowski]

Well Its coming out of the top of the engine. I will try to make a picture and then put it on here.