My truck began to evaporate the oil and to release blue smoke in the escape in the mornings I look for the valve or PCV system but I do not have the manual they consider that the system is obstructed requires change of the valve
Maybe you have the evil valve seals, after stopping the engine the oil drains through the body of the valve depositing small drops of oil on the head of the valve and in the piston's head, when the engine turns on the next day that oil is burned coming out blue smoke then the smoke is removed