Definition
Plug heat range must match engine compression and induction level.
Turbo and nitrous builds often use colder plugs to avoid fouling.
Automotive Wiki
Maintenance
Spark Plug
An ignition component creating the arc that ignites the air-fuel mixture.
Related terms
- Oil ChangeDraining and replacing engine oil and filter on a service interval.
- Coolant FlushReplacing engine coolant to restore corrosion protection and boiling point.
- Serpentine BeltA single belt driving alternator, power steering, water pump, and accessories.
- Wheel AlignmentAdjusting camber, caster, and toe so tires wear evenly and handle predictably.
- Tire RotationMoving tires to different corners to equalize tread wear over time.
- Brake BleedPurging air from brake lines to restore firm pedal feel and full hydraulic press…
Category: Maintenance · Updated August 31, 2026