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Engine oil viscosity (thickness) has an effect on fuel economy and cold weather operating (starting and oil flow). Lower viscosity engine oils can provide better fuel economy and cold-weather performance, however, higher viscosity engine oils are required for satisfactory lubrication in hot weather. Using oils of any viscosity other than those recommended could result in engine damage.
When choosing an oil, consider the range of temperature your vehicle will be operated in before the next oil change.
How Much Oil Does a Kia Rio Take?
The 2021 KIA Rio with the 1.6L 4-cyl engine takes 4 quarts (with filter) of 0W-20 synthetic oil. A new oil filter and a crush washer are required.
2005 2006 2007 2008 2009 2010 KIA Rio Oil Capacity
| Engine | Oil capacity (with filter change) | Oil type |
| Rio 1.4 | 3.3 l / (3.5 US qt.) | 10W-30, 5W-20, 5W-30 |
| Rio 1.6 CVVT | 3.3 l / (3.5 US qt.) | 10W-30, 5W-20, 5W-30 |
| Rio 1.5 CRDi | 5.3 l | 5W-20, 5W-30 |
2011 2012 2013 2014 2015 2016 KIA Rio Oil Capacity
| Engine | Oil capacity (drain and refill) | Oil type |
| 1.6 L Gamma GDi | 3.8 US qt. (3.6 l) | 10W-30, 5W-20, 5W-30 |
| Rio 1.4 | 3.3 l / (3.5 US qt.) | 10W-30, 5W-20, 5W-30 |
| Rio 1.2 CVVT | 3.3 l / (3.5 US qt.) | 10W-30, 5W-20, 5W-30 |
2017 2018 2019 2020 2021 KIA Rio Oil Capacity
| Engine | Oil capacity (drain and refill) | Oil type |
| Gamma II 1.6L MPI | 3.8 l (4.0 US quarts) | 0W-20, 10W-30, 5W-30, 0W-30 |
| Rio 1.4 CRDi | 5.3 l (5 US quarts) | 0W-20, 10W-30, 5W-30, 0W-30 |
| Rio 1.2 CVVT | 3.3 l / (3.5 US quarts) | 10W-30, 5W-20, 5W-30 |
For better fuel economy, it is recommended to use the engine oil of a viscosity grade SAE 0W-20 (API Latest(ILSAC Latest) or ACEA C5). However, if the engine oil is not available in your country, select the proper engine oil using the engine oil viscosity chart.
