Syntholube TXI 5W50 Fully Synthetic Poly Alpha Olefin Engine Oil This high performance motor oil is formulated with OWS Poly Alpha Olefin (PAO) synthetic technology. Highly recommended for use in modern engines with extended oil change intervals due to its high sludge resistance. It is also more economical than conventional non-synthetics by providing better fuel economy, reducing engine wear and improving reliability. The broad viscosity range secures the best lubrication in engines operating in low and extremely high temperatures. It provides modern multi valve engines with the best protection against wear even against the tightest tolerances and is suitable for all gasoline and diesel engines. API SL / CF; ACEA A3, B3; Mercedes-Benz Approvals for Service Products Sheet 229.1; Porsche Approval; VW-Norm 501 01 and 505 00 Issue 11/92 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.