Blue smoke

friends in my friend's vehicle 106 mine has a little blue smoke coming out of his exhaust. I don't know how I can prevent this blue smoke more in cold weather and in closed areas. It is not obvious that blue is obvious. bi, what item does it pass & nbsp;

If blue smoke is present, the vehicle is probably burning fat. Circlips are worn. There is also fat reduction. If the km is not known, but if contempt is used, engine revision may be required earlier. I think take it to a master or service.