Spark Plug Gap Check
WARNING: This page is about a different car, the 2012 Mitsubishi Lancer. However, it is still accessible from the selected car via links, so may be relevant.
Check the plug gap with the wire type plug gauge. Replace it if the limit is exceeded.
Standard value: 0.5 - 0.6 mm (0.020 - 0.023 inch)
Limit: 0.8 mm (0.031 inch)
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.