Is it mandatory to use 0w20 oil for Corolla?

[DeCamilla]

Corolla does not necessarily require 0w20 oil, 5W20 oil can also be used. Below is extended information about engine oil: 1. Increased fuel consumption: When adding engine oil, the oil level should be between the upper and lower limits on the dipstick. If too much oil is added, the oil volume will expand as the engine temperature rises, increasing pressure in the oil chamber and operational resistance, which will reduce vehicle power and increase fuel consumption. 2. Overfilling oil: Excessive oil can cause oil to leak through the crankcase vent pipe. Increased crankcase pressure may loosen oil seals due to oil pressure, leading to oil leaks. 3. Heat dissipation: Overfilling oil can affect engine heat dissipation.