Proton X50 DCT Fluid Malaysia
Proton X50 · 2020–present
X50 uses a 7-speed wet DCT (Getrag-derived). Geely-spec DCT fluid must be used — NOT generic ATF. Change every 40,000 km. Early X50 units (2020–2022) had DCT calibration issues causing shudder. Steps: 1) change DCT fluid first, 2) request Proton software update from dealer. Most cases resolve without major repair.
Proton Gearbox Fluid — Malaysia Guide
Proton models use different transmissions: Saga/Persona use a 4-speed auto (Dexron III ATF) or 5-speed manual; X50/X70/X90 use a 7-speed dry dual-clutch (7DCT) requiring Geely-spec DCT fluid — NOT standard ATF. The 7DCT is sensitive to fluid degradation; change every 40,000–60,000 km. Clutch adaptation reset is sometimes needed after fluid change — only a Proton-equipped scanner (PTSS) can do this properly.