Mobil 5w 20 viscosity oils

5W-20 motor oil

5W-20 is second only to 5W-30 as the viscosity most recommended by automakers for vehicles over the past four decades. Most popular with American automakers, it’s also been a frequent choice of Asian automakers. A few European automakers call for it in their trucks and vans.

Some automakers have and are transitioning to 0W-20 oils for recent model year vehicles to help optimize fuel economy. And 0W-20 is increasingly being listed as an alternate choice for a 5W-20 oil.

We offer a wide range of 5W-20 oils. Use the comparison feature below to find the protection that best fits your needs.

Three of our 5W-20 oil carry the dexos®1 approval specified for General Motors vehicles.

*The dexos® specification and trademark are exclusive to General Motors, LLC.

What do the numbers in 5W-20 mean? The numbers refer to the weight and thickness, or viscosity, of the oil. Motor oil gets thicker when it’s cold and thinner when it heats up. The first number indicates the viscosity of the oil at a cold temperature, and the second number indicates the viscosity at operating temperatures.

Compare to see different levels of protection these products offer and choose the one that meets your needs.

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