Field installed spark plugs are designed for normal driving conditions. Below are the conditions under which it is recommended to install other types of spark plugs with the appropriate thermal range:
1. If the machine is mainly used for short trips and the engine does not have time to warm up to its operating temperature, it is recommended to use hot type spark plugs.
2. If the machine is frequently operated for long distance travel at a constant high speed, it is recommended to use cold type spark plugs.
Contact your Nissan dealer for spark plug types.