Should the New Alto use 5w30 or 0w20?

[VonGabrielle]

The New Alto uses 0w20 engine oil. The type of engine oil used is closely related to the engine structure. The gaps between internal components are relatively small, and using low-viscosity engine oil can save fuel and allow the engine to perform at its best. The difference between 5w30 and 0w20 engine oils lies in their low-temperature fluidity and high-temperature protection performance. Although 5w30 offers better high-temperature protection and sealing performance, its higher viscosity increases engine operating resistance and fuel consumption. Overall, the New Alto is more suitable for using 0w20 engine oil with better low-temperature fluidity. The dimensions of the New Alto model are: length 3500mm, width 1600mm, height 1470mm, with a wheelbase of 2360mm.

[VonZoey]

I remember when I first changed the oil for my new Alto, I checked the owner's manual which clearly recommended 0W20. This low-viscosity oil has good fluidity, ensures quick cold starts, and is suitable for modern small engine designs. The 0W indicates it can flow smoothly at -35°C, while the 20 denotes low viscosity at high temperatures, reducing friction and saving fuel. Compared to 5W30, it further improves fuel efficiency, allowing you to drive a few extra kilometers in city conditions. If the manual isn't available or is lost, you can check Suzuki's official website or confirm with a 4S店. Avoid arbitrarily switching to higher viscosity oils to prevent affecting warranty coverage or engine lifespan.

[DeCassidy]

As a seasoned driver, I choose 0W20 mainly for its fuel efficiency. The new Alto is a commuter car with a compact engine, and using 0W20 noticeably reduces fuel consumption, saving some money on gas each month. Although 5W30 has higher viscosity and can withstand high temperatures for better protection, it's unnecessary for regular driving scenarios. The price of engine oil is similar, as long as you buy reputable brands like Shell or Mobil and change it every 5,000 kilometers. Don't skimp by using off-brand oils, as poor-quality oil can lead to carbon buildup.

[StAliyah]

If the car frequently drives on mountain roads or highways with high engine load, I would consider using 5W30. Although 0W20 is more fuel-efficient, it's too thin with lower viscosity at high temperatures, providing less protection, especially during prolonged high RPMs where bearing wear accelerates. New cars generally recommend 0W20, but for owners with aggressive driving habits, 5W30 can be a balanced choice. Monitor fuel consumption and engine noise first—if there are no abnormalities, it's fine. Both can be used; the key is to maintain regular servicing.