2025-01-15 · 5 min read
Proton Exora Carbon Cleaning Malaysia
Exora 1.6T CFE: PORT injection — NO intake valve carbon buildup. This is an advantage over Geely-engine Protons (X50/X70). Throttle body cleaning every 20,000 km. No walnut blast needed. Intake manifold: inspect at throttle body service.
Proton Exora 1.6T CFE uses PORT injection — fuel washes the intake valves with every combustion cycle. NO carbon buildup on intake valves. No walnut blast needed. Throttle body cleaning () at 60,000–80,000 km is the only intake-related service.
Carbon Buildup — Proton Engines Malaysia
The X50/X70/X90 1.5T TGDI uses direct injection — more prone to intake valve carbon buildup than port-injected engines. Short city trips without occasional highway runs accelerate buildup. Every 3–6 months, take a 30-minute highway run at 3,000+ rpm to burn off deposits. An intake cleaning service () every 50,000–80,000 km is worth considering. Saga/Persona with port injection have much less carbon risk — only standard service needed.