Good
but the question would be if it is throwing blue smoke and if it does at what temperature it is and if it is continuous all the time ???
1.-If they were the valve stamps you would only have smoke with the hot engine for a moment and then the smoke was removed
2.- If it were piston rings you would have smoke when the engine was heated; and by keeping high RPM from 2500 to 3500
3.- If they were rings problems you would have wet oil spark plugs
4.- If you give you false comprehensive example 150-155-150-250? It may be that your oil is very deteriorated and that is what marks you badly
the 5 oil functions are the following:
1.-Sellar
2.-Lubricate
3.-Drink
4.-Limpia
5.-Anti-oxidar
those are the functions of the motor oil in that order in that order