Multilight LXI 10W40 Fully Synthetic Hydrocrack Engine Oil The OWS 10W40 is a light running engine oil with OWS fully synthetic hydrocrack technology. For use in cars (gasoline, diesel and supercharged motors) and light commercial vehicle motors. ACEA A3,B3; API SL/CF; Mercedes-Benz Approvals for Service Products Sheet 229.1; VW-Norm 500 00 and 505 00 Issue 1/07, BMW Special Oils OWS lubricants are of the highest quality. Our fully synthetic oils adopt poly alpha olefin synthetic technology for utmost protection and performance. OWS lubricants are produced and packed in Germany and we ensure that our oils are certified by API, ACEA and individual manufacturers like Mercedes Benz, BMW, Volkswagen and Porsche. We also test our oil regularly to ensure that maximum quality is extracted from every drop.