GENUINE SUZUKI / MARUTI ECSTAR AMT ACTUATOR FLUID — 550 ML OEM Part No.: 99000M24121-135 ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━. This specialized hydraulic oil maintains correct pressure and lubrication inside the actuator unit —directly affecting gear shift quality, actuator longevity, and overall AMT performance.