Rocker Arm Installation Note

WARNING: This page is about a different car, the 2014 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.

Apply engine oil to the HLAs and the end of the valve stems.
Install the rocker arms to the same positions as before removal.

Fig 1: Identifying Engine Oil Applying Area To HLAS And End Of Valve Stems
Courtesy of MAZDA MOTORS CORP.