Removal and Installation: Installation

Installation is in the reverse order of removal. Paying attention to the following.
1. Apply Genuine Silicone RTV Sealant (A), or equivalent, to the upper oil pan. Refer to "RECOMMENDED CHEMICAL PRODUCT AND SEALANT ", and "PRECAUTION FOR LIQUID GASKET ".
  CAUTION: Install two new O-rings in the upper oil pan and a new O-ring in the front cover.
  
  Fig 1: Installing Two New O-Rings In Upper Oil Pan
  Courtesy of NISSAN MOTOR CO., U.S.A.
2. Tighten the oil pan (upper) bolts in the order as shown in the figure.
  - NOTE: Use the bolt sizes specified below:
    M6 x 20 mm (0.79 in): No. 16, 17
    M8 x 25 mm (0.98 in): No. 3, 4, 6, 11, 13, 14, 15
    M8 x 60 mm (2.36 in): No. 5, 7, 8, 9, 10
    M8 x100 mm (3.97 in): No. 1, 2, 12
    
    Fig 2: Upper Oil Pan Bolt Tightening Sequence
    Courtesy of NISSAN MOTOR CO., U.S.A.
3. Apply Genuine Silicone RTV Sealant (A), or equivalent to the lower oil pan. Refer to "RECOMMENDED CHEMICAL PRODUCT AND SEALANT ", and "PRECAUTION FOR LIQUID GASKET "
  
  Fig 3: Applying Genuine Silicone RTV Sealant
  Courtesy of NISSAN MOTOR CO., U.S.A.
4. Tighten the oil pan (lower) bolts in the numerical order shown in the figure below.
  - Wait at least 30 minutes after the oil pans are installed before filling the engine with oil.
    
    Fig 4: Lower Oil Pan Bolt Tightening Sequence
    Courtesy of NISSAN MOTOR CO., U.S.A.