2026-10-08 · 5 min read
Nissan Serena Spark Plugs Malaysia — MR20DD
Serena C27 MR20DD: iridium spark plugs, replace every 60,000 km, 4 plugs. Direct injection engine — iridium mandatory. Quiet MPV cabin makes plug condition very noticeable — even mild misfires felt by passengers. Don't delay past 60,000 km — worn plugs in a DI engine increase carbon deposit rate.
Serena MR20DD Spark Plugs
- MR20DD uses iridium spark plugs — replace every 100,000 km
- NGK ILFR6A11 or equivalent — never substitute copper plugs on a modern direct-injection engine
- Symptoms of worn plugs: rough idle at startup, hesitation when merging onto highway, increased fuel use
- S-Hybrid Serena: keep plugs in good condition — misfires can confuse the hybrid ECU