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Drawbacks to Using Iridium Spark Plugs - MotorBiscuit

Drawbacks to Using Iridium Spark Plugs - MotorBiscuit

Drawbacks to Using Iridium Spark Plugs - MotorBiscuit
Oct 02, 2022 42 secs

The metal electrode on a spark plug is typically made of platinum, copper, or an iridium alloy.

Comprised of a terminal connector, a hex head, a crush washer, a threaded bottom, a central electrode, and a ground electrode, a single spark plug sits at the top of each cylinder.

Six times stronger than steel, iridium spark plugs can withstand much higher temperatures than their copper and platinum counterparts.

Iridium spark plugs also offer cleaner ignition by completely combusting the air-fuel mixture during the starting sequence.

Next time you switch spark plugs, consider shelling out a few more bucks for iridium, especially if you drive an off-road vehicle or do a lot of towing?

Still, drivers who make the switch almost always say that iridium spark plugs pay for themselves with improved acceleration, fuel efficiency, and extended time between spark plug changes

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