2026-10-08 · 5 min read
Nissan Latio Carbon Cleaning Malaysia — HR15DE
The HR15DE uses port injection, so carbon buildup on intake valves is minimal compared to direct-injection engines. The main carbon concern on the Latio is throttle body deposits at 60,000–80,000 km, causing rough idle and hesitation. Throttle body cleaning is the recommended intervention. Fuel injector deposits can also form — use a quality fuel injector cleaner treatment in the tank every 30,000 km, or professional ultrasonic cleaning at 80,000 km.
The HR15DE uses port injection, so carbon buildup on intake valves is minimal compared to direct-injection engines. The main carbon concern on the Latio is throttle body deposits at 60,000–80,000 km, causing rough idle and hesitation. Throttle body cleaning is the recommended intervention. Fuel injector deposits can also form — use a quality fuel injector cleaner treatment in the tank every 30,000 km, or professional ultrasonic cleaning at 80,000 km.