I read it as 4 , no more than 5 ....

But , all my other books [after market] list them at 44/45 ft/lbs. Oil, no molylube.
No angle specs..

You may want to try both techniques and see how they equate..if you use the 4 and then compare w/torque wrenc. you know you still have the tolerance factor going up. [ 4, +1 ]