colour smoke?

[Dy_]

I remember reading somewhere that different coloured smoke coming from exhaust represents different things?

Can anyone tell me what they are?

black = burning oil?
blue = blown head??

[destrukshn]

blue is burning oil i'm quite sure.
black is running rich.
white is water.

[bennjamin]

you should only see smoke at certain times

black smoke = at full throttle upper RPMs
white smoke = early morning starts / cold mornings (condensation etc)

blueish smoke = when excess oil is getting into your combustion cycle
white smoke = when excess water/coolant is getting into you combustion cycle
- time for a compression test / leakdown test.

[Dy_]

oh ok what do you mean running rich? as in too much?

any other colours?

[Dy_]

thanks!

[destrukshn]

too much fuel.
quite normal in hondas with vtec.
or boosted cars as well.

[DUST]

I was reving my vtec to about 7000 rpm yesterday and my friend said he saw blue/grey smoke coming out, what would that mean?

Hope its nothing too serious :(

[Dy_]

I was reving my vtec to about 7000 rpm yesterday and my friend said he saw blue/grey smoke coming out, what would that mean?

Hope its nothing too serious :(

As stated above its burning oil.
Meaning the oil you're using is too thin for your car try and thicker one?

[DUST]

Oh really?

Im using Castrol GTX3 atm, what oil should i use instead then?

[Dy_]

Oh really?

Im using Castrol GTX3 atm, what oil should i use instead then?

what year model is the car? and how many kms has it done?

[DUST]

97 model, 176XXXkms

[Dy_]

97 model, 176XXXkms

go for something like a gtx2 20W50.

please if anyone has any other suggestions for DUST contribute to this thread.

[DUST]

Thanks anyways Dy, i will do some research on some oil.