Why are platinum and iridium used as spark plugs?
The higher melting point of iridium and platinum allows spark plug manufacturers to reduce the diameter of the center electrode. The smaller the diameter of the center electrode, the lower the voltage needed to start the spark.
What makes a platinum spark plug more expensive?
Spark plugs known as platinum feature a platinum center electrode. These are also described as “single platinum” plugs. Platinum-tipped spark plugs are more expensive because platinum is a more rare element in nature. Where platinum spark plugs shine is their great longevity under normal driving conditions.
What’s the melting point of platinum spark plugs?
Platinum has a melting point of up to 3,215 degrees Fahrenheit. Comparing that to copper’s melting point of just 1,984 degrees Fahrenheit should give you an idea of how long platinum spark plugs can outlast copper spark plugs. There are two varieties of platinum spark plugs—single and double platinum.
What kind of spark plug is best for a car?
Platinum spark plug. A single platinum spark plug is basically styled after a copper spark plug with a platinum disc welded to the tip of the center electrode. Since platinum is harder than nickel alloy, it holds its sharp edge for as long as 100,000 miles.
What is the best platinum spark plug?
For the vast majority of drivers on the road today, the Bosch Platinum +4 can be considered the best all-around spark plug. The Platinum +4 achieves its high performance by employing four (as opposed to one) yttrium-enhanced ground electrodes.
What are the benefits of double platinum spark plugs?
Double Platinum Spark Plugs Genuine Toyota Double Platinum spark plugs, available for select Toyota models, offer several benefits: Platinum on both the center and ground electrodes reduces wear and provides a service life of up to 60,000 miles. Raised design provides excellent ignitability for a strong spark, smooth idle and optimum performance. Platinum material also incorporates nickel and iridium, resulting in a stronger, more durable alloy that resists cracking.
What material is best for spark plugs?
Silver is the best electrical and thermal conductor of any metal, which makes it the ultimate material for a spark plug’s center electrode. The large diameter silver center electrode increases spark carrying ability and spark power.
What are the benefits of iridium spark plugs?
The main advantages come with use. Firstly, the iridium spark plug will be longer-lasting, meaning that you won’t have to change the spark plugs so frequently. They are also consistent, which means that there will be no noticeable deterioration, unlike copper spark plugs.