Blue smoke

[pwjoc1]

hello, I bought a Toyota Avensis D-Cat Auto 2011 2.2ltr recently, it had 4 new injectors fitted and calibrated in a reputable garage, the car has a very good service history but while driving down the motorway I noticed blue smoke coming from exhaust, I have been watching the oil level every day and no signs of burning oil, it seems to happen while accelerating / decelerating, would the new injectors be causing the problem, can anyone give advice please    

[avetoy]

As far as I know, blue smoke is usually caused by burning oil...   Worn valve stem seals, piston rings or turbo could be the reason?

It is of course possible that something has happened during the replacement of the injectors if the car had no smoke issues before...

In this case, there must be quite a lot of smoke if it can be seen in the mirror when driving on the motorway?

What is the mileage?

[pwjoc1]

114,000 miles, I drove it down the motorway again yesterday for about an hour 70 mph no sign of smoke I checked the dipstick when I got home oil level still the same, I forgot to mention I put a can of JML cleaner into the tank it seems to have solved the problem, maybe the turbo was dirty.

 

[Oisin]

On 3/7/2023 at 12:45 PM, pwjoc1 said:

114,000 miles, I drove it down the motorway again yesterday for about an hour 70 mph no sign of smoke I checked the dipstick when I got home oil level still the same, I forgot to mention I put a can of JML cleaner into the tank it seems to have solved the problem, maybe the turbo was dirty.

 

Sometimes just a simple good fast drive can clear up smoke issues.  I would recommend the Liqui Moly diesel system cleaner once a year, and super diesel additive between services to keep the fuel system clean.