2026-10-08 · 5 min read
Mitsubishi Eclipse Cross Spark Plug Replacement Malaysia
The 4B40 1.5T MIVEC engine uses iridium spark plugs with a recommended replacement interval of 60,000 km. NGK or Denso iridium equivalents are commonly used in Malaysia and perform well in turbocharged applications. Worn spark plugs on a turbocharged engine cause misfires, power loss, and can trigger boost-related fault codes. Do not substitute copper plugs as the gap and heat range are optimised for iridium on this engine.
The 4B40 1.5T MIVEC engine uses iridium spark plugs with a recommended replacement interval of 60,000 km. NGK or Denso iridium equivalents are commonly used in Malaysia and perform well in turbocharged applications. Worn spark plugs on a turbocharged engine cause misfires, power loss, and can trigger boost-related fault codes. Do not substitute copper plugs as the gap and heat range are optimised for iridium on this engine.