Oil Pan Installation Note

Completely clean and remove any oil, dirt, sealant or other foreign matter that may be adhering to the cylinder block and oil pan.
When reusing the oil pan installation bolts, clean any old sealant from the bolts.
CAUTION:
- Apply the silicon sealant in a single, unbroken line around the whole perimeter.
- To prevent silicone sealant from hardening, adhere the oil pan to the cylinder block within 10 min after silicone sealant is applied. Tighten the installation bolts completely soon after adhering.
- Using bolts with the old seal adhering could cause cracks in the cylinder block.
Apply silicone sealant to the oil pan along the inside of the bolt holes as shown in the figure below.

Fig 1: Identifying Oil Pan Installation Bolts
Courtesy of MAZDA MOTORS CORP.

SKYACTIV-G 2.0

Fig 2: Identifying Sealant Applying Area On Oil Pan (Skyactiv-G 2.0)
Courtesy of MAZDA MOTORS CORP.

SKYACTIV-G 2.5

Fig 3: Identifying Sealant Applying Area On Oil Pan (Skyactiv-G 2.5)
Courtesy of MAZDA MOTORS CORP.

Thickness

SKYACTIV-G 2.0: 2.0-6.0 mm {0.08-0.23 in}

SKYACTIV-G 2.5: 3.0-7.0 mm {0.12-0.27 in}
Install the oil pan using the following procedure:
SKYACTIV-G 2.0
1. Install the oil pan to the cylinder block.
2. Tighten the bolts in the order shown in the figure below.
  Tightening torque
  
  8-11 N.m {82-112 kgf.cm, 71-97 in.lbf}
SKYACTIV-G 2.5
1. Install the oil pan to the cylinder block.
  
  Fig 4: Oil Pan Bolt Tightening Sequence
  Courtesy of MAZDA MOTORS CORP.
2. Temporarily tighten the two bolts shown in the figure.
  
  Fig 5: Identifying Oil Pan To Cylinder Block Mounting Bolts
  Courtesy of MAZDA MOTORS CORP.
3. Tighten the bolts in the order shown in the figure.
  Tightening torque
  
  8-11 N.m {82-112 kgf.cm, 71-97 in.lbf}
  
  Fig 6: Identifying Oil Pan Mounting Bolts Tightening Sequence
  Courtesy of MAZDA MOTORS CORP.