SERIOUS POWER FOR ALL TYPES OF ENGINES -
NGK Spark Plugs are available in many heat ratings for each application. Each rating has a
wide range of operating temperature. Selection on the proper heat rating is determined by the
condition of the engine and the way it is driven.
Wide heat range is crucial for optimum engine performance. The plug must operate at a temperature
hot enough to burn off deposits which cause fouling and misfiring; yet be cool enough
to prevent pre-ignition. NGK’s heat range is much wider than ordinary plugs. In fact, a single
NGK Spark plug type often covers the range of two or three conventional plugs.
At low speeds or in stop-and-go driving, NGK’s will resist build-up and avoid
fouling. The same NGK plugs will also resist pre-ignition problems when severe heat is
generated by high speed or heavy load condition. One secret to NGK’s wider heat range rating
is advanced design, materials, and construction. With the introduction of the copper core in
1958, NGK dramatically changed spark plug technology. Copper’s heat conductivity and electrical
properties are superior to conventional plugs. Heat is quickly dissipated from the centre
electrode and insulator to avoid plug-damaging hot spots and to prolong plug life.
NGK also engineered a longer insulator nose to minimize carbon build-up and reduce cold
operation misfiring. Superior construction. Longer life. Optimum performance. All are standard
with NGK, the brand specified as the source for serious power on more new automotive,
motorcycle, snowmobile, marine and small engines than any other spark plug in the world.