Opinion Blown HG or Turbo Seal???

[87national]

Started the car today, and seen some blue puffs of smoke. Took a drive normally and nothing but when in boost a small trail of blue smoke. I have bubbles in my overflow but been like that for awhile, I use RMI25 so smell and colour look like oil. Opinion?

Thanks

 

[GNFURY]

doesn't sound like head gasket to me, that makes white smoke. may be the turbo, or the piston rings..... might be time to rebuild one of the two. pull off the hose on the outlet side of the turbo and see if there is any oil residue on the rim of the outlet on the turbo. if there is, rebuild the turbo. or you can live with the smoke, but oil coming out of your turbo and into your intake can lower the octane of the fuel you are running once it hits the combustion chambers. might eventually cause knock under boost.

 

[striker_29]

Do a compression test, that should tell the tale.