Engine oil is essential for cars with internal combustion engines. It lubricates the engine's internal parts, like the camshaft(s), crankshaft, and pistons, as well as helps with heat dissipation. But ...

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 ...

We earn commissions from purchases you make using links in our articles. Learn more. Save time and money by changing your own oil. See the best conventional motor oils here. Shopping for engine oil ...

Shell Lubricants has introduced Shell Rotella T6 10W-30 full synthetic heavy-duty engine oil, which provides the benefits of fully synthetic engine oil in the fastest-growing viscosity grade for ...

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 ...

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 ...