2025-01-15 · 5 min read
Mazda 3 Spark Plugs Malaysia
Mazda 3 BP: 4 iridium plugs every 60,000 km. 1.5L and 2.0L both straightforward access. Malaysia: RM 200–350. SkyActiv-X variant: NGK laser iridium required — different spec. Do not use copper plugs on SkyActiv engines.
Mazda 3 Spark Plugs
- 4 × NGK iridium — every 60,000 km; RM 200–300
Spark Plugs — Mazda SKYACTIV Engines
All SKYACTIV-G engines use NGK iridium spark plugs — change every 60,000–80,000 km. SKYACTIV-G's high compression ratio (13:1 or 14:1) demands iridium or platinum plugs; copper plugs are not acceptable. Symptoms of worn plugs: rough idle, slight hesitation on acceleration, marginally higher fuel consumption. Set of 4 iridium plugs: RM 180–280 including labour at an independent workshop. For 4-cylinder 2.0L and 2.5L engines, plug access is straightforward. Mazda does not use pre-ignition mitigation via water injection — worn plugs increase knock risk at high load in Malaysian heat, so do not delay replacement.