2026-10-08 · 5 min read
Nissan X-Trail Spark Plugs Malaysia — MR20DE / KR15DDTX
T32 MR20DE: iridium spark plugs, replace every 20,000 km. 4 plugs. T33 KR15DDTX 1.5T: iridium plugs mandatory for the turbocharged engine — copper plugs are not suitable. Replace every 20,000 km. Misfires on a turbocharged engine cause catalytic converter damage and CVT stress — don't delay plug replacement. Plug access is straightforward from top of engine on both T32 and T33.
X-Trail Spark Plugs
- T32 MR20DE 2.0L: NGK ILFR6A11 or equivalent iridium — replace every 100,000 km
- T32 QR25DE 2.5L: same iridium interval — never substitute with copper plugs
- T33 KR15DDTX 1.5L turbo petrol: iridium spec, inspect at 60,000 km
- Signs of worn plugs: rough idle, hesitation under acceleration, reduced fuel economy