For vehicles built from 1955 - 1995

Superior to all standard spark plugs

Pointed Ground Electrode.

• Increased ignition reliability due to faster flash-over of the spark and ignition of the air-fuel mixture.

Electrode Wear

• Proven in endurance and severity tests.  Yttrium electrodes exhibit less wear than electrodes without Yttrium.  Endurance tested over 90,000km with the same engine.

Long Service Life

• Yttrium enhanced centre electrode gives 50% longer service life over standard copper core spark plugs.

Improved Performance

• Uniquely shaped, profiled ground electrode improves egnition performance, fuel saving and reduces harmful emissions.