2026-10-08 · 5 min read
Mitsubishi Outlander Spark Plug Replacement Malaysia
Both the 4J11 2.4L and 4B11 2.0L are four-cylinder engines requiring four iridium spark plugs. The replacement interval is every 60,000 km. Iridium plugs maintain a fine electrode tip that promotes clean ignition in the MIVEC variable valve timing engine. Overdue spark plugs cause rough idle, hesitation under acceleration, and increased fuel consumption. Always use the correct heat range plugs specified for the Outlander — do not substitute cheaper copper plugs.
Outlander 4J11 Spark Plugs
- 4J11 2.0L: use NGK iridium plugs — change every 80,000–100,000 km
- 4 cylinders, 4 plugs — replace as a complete set for uniform combustion across all cylinders
- Worn plugs cause rough idle and reduced fuel economy — noticeable on the heavier 4J11 engine