Other information:
Inspection
NOTE:
Dropped spark plugs should always be discarded.
Unfired
An unfired spark plug should appear very clean
with a pure nickel finish to the threads and ground strap. The center
electrode ceramic insulator surface is often a matte or dull finish and
pure white in color...
What Is the Catalytic Converter
The catalytic converter is part of your
vehicle's emissions system and filters
harmful pollutants from the exhaust gas.
Catalytic Converter Precautions
WARNING: Do not park, idle or
drive your vehicle on dry grass or other
dry ground cover...