TSB: NOTE-Service Bulletin No. T-SB-0158-14, "2AZ Engine Oil Consumption Inspection Procedure," MUST be performed first BEFORE continuing with the procedure in this bulletin. Some 2006 - 2013 model year vehicles equipped with the 2AZ engine may exhibit engine oil consumption. The piston assembly has been changed to minimize oil consumption. Use the following Repair Procedure to address this condition.