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 ...
Oritsegbubemi OmatseyinLagos — Pinnacle Oil and Gas Limited, has launched its flagship fully synthetic lubricant product, PIBREUM SN-9000 5W-30, designed to deliver superior engine performance and ...