Shell Helix HX8 ECT C3 is a fully synthetic motor oil with advanced emissions-compatible technology for ultimate protection of vehicle emissions systems. Its low-SAPs formulation helps keep diesel particulate filters clean and prevents ash build-up, maintaining optimal engine performance. It meets ACEA C3 specifications and is approved by MB Approval 229.51, 229.31, and BMW LL-04, making it suitable for a wide range of cars including BMW and Mercedes-Benz models.