Do I have to use iridium spark plugs?
No, you don’t have to use iridium spark plugs. You should be fine with the ones you bought. You should use NGK or Denso iridium though , for two good reasons. They are what came in your vehicle from Toyota and they last for 120,000 miles.
Can I use copper spark plugs instead of iridium?
Platinum and Iridium plugs perform at a lower level than copper spark plugs, because they are less conductive and they tend to overheat. However, the overall longevity of these two types of metal is better than copper plugs. In reality, copper has the best performance of all three and the worst longevity.
What spark plugs does Toyota recommend?
Top 7 Best Spark Plugs for Toyota Corolla – Reviews
- NGK 7090 BKR5EGP G-Power Spark Plug – Editor’s Choice.
- NGK 5464-4PK Iridium IX Spark Plug – Best Overall.
- Autolite APP5683-4PK Double Platinum Spark Plug – Budget Pick.
- NGK ILKAR7B11 Laser Iridium Spark Plug.
Which is better platinum or iridium spark plugs?
Iridium is said to be six times harder and eight times stronger than platinum with a 700° higher melting point. Iridium spark plugs have extremely fine electrodes while retaining excellent wear characteristics. Thanks to its strength, iridium spark plugs can last up to 25% longer than comparable platinum spark plugs.
Which spark plugs would be best?
The 5 Top-Rated Spark Plugs Our Top Pick: NGK 6619 Iridium Spark Plugs Runner-Up: Bosch 4417 Platinum+4 FGR7DQP Spark Plug Budget Pick: Denso (4503) PK20TT Platinum TT Spark Plug Best Who Should Buy a Spark Plug? Important Features to Consider Frequently Asked Questions
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.
Is iridium more expensive than platinum?
Highly innovative technology goes into integrating the iridium into the superior material and this means they are more costly than copper or platinum They are well suited for high-performance engines. Advantages of Iridium Spark Plugs
Should I use copper or platinum spark plugs?
Platinum and Iridium plugs perform at a lower level than copper spark plugs, because they are less conductive and they tend to overheat. However, the overall longevity of these two types of metal is better than copper plugs. In reality, copper has the best performance of all three and the worst longevity.