I had the Toyota dealer do my first 6 months' service. It went well excepting that the edge on one wheel conver was dropped on the concrete and shows it. I used my expensive SnapOn dial torque wrench to remove each lug nut to see if they were torqued correctly. One was torque just below 50 ft lbs, a second was to 90 ft lbs, two were at 60, and the rest from 70-80. 75 to 80 is correct. I retorqued them all to 80 ft. lbs. I used a $10 Harbor Freight torque wrench, which is quite accurate for the price. If you are using a torque wrench, it is important that the handle be forced at the correct place and that the wrench be moving when it "clicks." If it not moving,the applied torque will be lower than the calibration on the wrench.