like 0W-20 and 5W-30, we'd have to use different weight oils for various climates. If you lived in the middle of the United ...

Let’s explain all of those confusing numbers, letters and terms to help you choose the right oil for your car.

Most are transitioning to SAE 10w-30, but depending on equipment builder recommendation for temperature conditions, other viscosity grades in SAE 5w-X and even 0w-X are being considered.

Newer automotive gasoline engines require the use of SAE 5W-30, 5W-20 or 0W-20 passenger car motor oil (PCMO) grades, dependent on manufacturer recommendations.” In addition, diesel engine oil ...