Extended Performance of Mobil 1 5 quarts of High Mileage 5W-20 Full Synthetic Motor Oil (Part No. 15020)
In This Article...
Is synthetic oil required for a Kia Optima?
Synthetic versus conventional oil Technically, using standard, or conventional, oil will not affect how well your Kia performs. This oil is extremely unfiltered and is in its most basic form.
Engine Oil
All TEMPS….5W-20, 5W-30 – SAE 5W-20 is advised for greater fuel economy.
Above zero degrees Fahrenheit, SAE 5W-20 is advised for greater fuel economy.
Use SAE 5W-20 over 14 F for greater fuel economy instead of 15W-40.
Use SAE 5W-20 when the temperature is above 18 F for optimum fuel economy.
Is 5W-30 a viable alternative to 5W-20?
It is generally not advised to substitute 5w30 oil (or any other oil weight) for 5w20 oil because even a small viscosity change has the potential to harm your engine.
Because your engine was developed with 5w20 oil in mind when it was constructed, all of the parts that come into contact with it must be a specified viscosity after the engine hits operational temperature, or 212.
5w20 oil will have a lower viscosity than 5w30 oil at this temperature; it will flow more easily and with less resistance. When 5w30 is used in place of 5w20, the engine will experience increased oil resistance once it reaches working temperature, which the engine is not built to manage.
If you substitute 5w30 oil for 5w20 when doing so is not advised or authorized by the owners handbook, it could violate your car’s powertrain warranty, impair engine performance, and ultimately harm your engine.
Using the proper oil keeps your engine operating at its best.
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Definition of 5w20 Vs. 5w30
The engine oil type 5w20 is distinguished by its oil weight of 20 in warm weather and a winter grade of 5. It has a lower viscosity than 5w30. While 5w30 has the same viscosity rating of 5 in the winter, it has an oil weight of 30 in the summer, making it thicker.
Working conditions for 5w20 Vs. 5w30
For use in cooler climates, use 5w20. As it moves swiftly and smoothly to deeper engine components with less friction, it makes it possible for a vehicle’s engine to start up rapidly. It immediately lubricates the components. In contrast, 5w30 performs well in warm environments. Unlike 5w20, it does not thin out quickly when exposed to heat. The engine components are therefore better protected overall when using 5w30 at operational temperatures.
Performance of 5w20 Vs. 5w30
These two engine oils function well in the environments for which they were created. Due to its low viscosity and reduced friction in the engine parts, 5w20 is a champion in colder regions with speedier engine starts. In hotter regions where a thick oil is required to resist the higher temperatures, 5w30 excels. Naturally, the engine will heat up more, necessitating a thicker oil. In colder climates, 5w20 is associated with higher performance and fuel economy, whereas 5w30 is associated with better overall engine component protection.
How long does it take to replace the oil in a Kia Optima?
Are you unsure about how frequently to replace the oil in your Kia? If your driving habits don’t require more frequent oil changes, you should be able to go 7,50010,000 miles in between oil changes.
What type of oil does a 2011 Kia Optima require?
If SAE 5W-20 engine oil is not available, SAE 5W-30 engine oil may be used. Capacity: 4.9 quarts with filter Check the oil level after refueling.