engine oil smoke colour

[RFAF]

Hi!
My engine is consuming a lot of oil during high rev. No sign of leaking. No oil when spark plug was inspected. However I do find oil stain inside the cylinder when checked with borescope.
I am sure that engine oil is burned inside the cylinder. But why is it not giving blue smoke at the tailpipe?
My thought is that engine oil burn-off totally when the cylinder get very hot (high rev ≈6000rpm) and thus not giving smoke? Can anyone verify this?

 

[spasm3]

If you have good compression but bad oil control rings, you will burn the oil cleanly.

 

[HerrStig]

If the car has a convreter, that will burn the oil until it clogs.

 

[alcyon]

welcome to BITOG, but this is the wrong forum you are posting in. You should post in the mechanical/ maintenance forum.

 

[RFAF]

Originally Posted By: alcyon
welcome to BITOG, but this is the wrong forum you are posting in. You should post in the mechanical/ maintenance forum.


opps sorry.

ok i will change the forum domain. thanks for reminding