What type of oil should be used for a 125cc scooter?

1 Answers
AthenaFitz
07/24/25 11:08pm
125cc scooters can use 10W50 mineral or fully synthetic oil in summer, and 10W30 mineral or fully synthetic oil in winter. Below is relevant knowledge about oil viscosity grades: 1. Meaning of W: W stands for WINTER. The number before W indicates the freezing point temperature. Simply put, it's the temperature at which the oil solidifies. 5W oil corresponds to a freezing point of -30°C, while 10W oil corresponds to -20°C. 2. Meaning of the number after W: It represents the oil's kinematic viscosity at 100°C. Higher numbers indicate higher viscosity. 40 means the kinematic viscosity standard at 100°C is between 12.5mm2/s to 16.3mm2/s.
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