Is blue smoke due to oil & cng mixing

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Is blue smoke due to oil & cng mixing

DEAR FRIENDS,

My khyber 1999 was running fine on CNG & Patrol(No smoke at All).

I got car oil changed. And Refill the CNG Cylinder. Then I come to Home. Next day when I started the car. Blue heavy smoke was found. Which after 4 to 5 minutes was ended.

Is this due to low CNG quality or Oil mixing or some thing else.

Thanks in advance

Gari.pk User 8453 asked on 07 Sep 2010 16:44:47 pm

1 Answer

227 views |

Mohsin - on 07 Sep 2010 16:44:57 pm

seems that oil found it's way into your combustion chamber, either from the head (valves possible as the little that was present might have burned off), head (oil entering via a weak head gaskit - not likely as it went away) or via the fuel line (oil in the gas cylinder - most likely cause).

however it is also very possible that your car was blowing steam which is very common on cold engines upon startup in winter.