Q: What difference does iridium spark plugs really make?

asked by on

What is the difference mechanically from using an iridium tipped plug versus a non iridium tip?

The spark plug gap on a spark plug is where the spark jump across the electrodes. The spark will melt the metal electrodes part of the spark plug where the spark jumps. When copper is used on the electrodes the spark will melt parts over about 30,000 miles before they will need to be changed again. If Iridium is used the precious metal is harder than copper and will withstand the high temperature of the spark on the electrodes. They will wear at a much slower rate and will last over 100,000 miles with little to no wear.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. What difference does iridium spark plugs really make?

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: where is the 6th spark plug on a ford escape v6 2005? is it the easy one to replace or the hard ones?

I'm working on this

Q: What spark plug should I get

There are many good quality spark plugs on the market. With each manufacturer there will be different quality plugs. They use better metals on the tip of the electrodes in the more expensive ones and the plugs will last longer...

Q: I installed the engine but has no fire to injectors or coil pack. Changed the crank sensor and cam sensor. Checked timing belt and everything is all okay.

Check the spark plugs and see if there is park on them as the engine is cranked over. If there is spark, then the ignition coils is working. Check the fuel injectors and see if they are getting fuel to...

Related articles

Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.