New DENSO spark plugs are pre-gapped and do not need changing. It is also important to note that DENSO plugs with a U-groove ground electrode require a special gap feeler gauge due to the U-groove.
The information below is provided as a general guide only. Please refer to your ownerâ€™s manual or the spark plug manufacturer for further information.
This guide is provided for informational purposes only. Always seek the advice of a trained professional before servicing any engine. DENSO is not responsible for the use or misuse of this information and any results thereof. Specifications subject to change without notice.