Question about 2003 Kia Sorento
5-20w is what the Manufacturer recommends and I would stick with that but go to synthetic as it is just better and really does not cost that much more as you can extend the service interval. This has the added benefit of less hassle in your life as well.
Posted on May 21, 2011
Most of the time when viscosity is explained words are used that are too technical for the average person to quickly grasp. This leaves them still wondering what the viscosity numbers really mean on a bottle of motor oil. Simply put, viscosity is the oil's resistance to flow or, for the layman, an oil's speed of flow as measured through a device known as a viscometer. The thicker (higher viscosity) of an oil, the slower it will flow. You will see oil viscosity measurement in lube articles stated in kinematic (kv) and absolute (cSt) terms. These are translated into the easier to understand SAE viscosity numbers you see on an oil bottle. 5-20 is most common in newer cars, synthetic oil is best to use it will not break down as fast and usually surpasses ratings for conventional oil. While the oil itself may be rated for a higher life cycle the main portion the Oil Filter is still only rated for 3-4K miles. So you will still need to change both regularly. Hope that helps you.
Posted on Aug 05, 2011
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Posted on Jan 02, 2017
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