Chevron Products Company has announced the introduction of Ursa Super Plus EC SAE 10W-30 motor oil to the United States and Canada. This new heavy duty motor oil is designed to help improve fuel ...

The number preceding the "W" is the "winter weight". I'm not sure how they compute it, or what it stands for, but basically, a "5W-XX" can be pumped by your engine at a lower temperature than a ...

Chevron's Ursa Super Plus EC SAE 10W-30 heavy-duty motor oil helps protect engine components against wear and corrosion, and has tested to show improved fuel economy relative to SAE 15W-40 diesel ...

In the United States heavy duty trucking lubricants market, the drive for energy efficiency is influencing a transition from SAE 15w-40 diesel engine oils to those with lower viscosity grades such as ...

FAIRFAX, Va.--(BUSINESS WIRE)--Responding to an increasing number of automotive manufacturers recommending lower viscosity motor oils, ExxonMobil recently added SAE 0W-20 viscosity to its Mobil 1 ...