Shell Helix HX8 5W40 ACEA C3 API SN/CF ECT 5L 5 litreShell Helix HX8 ECT uses Shells advanced emissions compatible technology to help protect the vehicles emission system. Its low SAPs formulation helps to keep diesel particulate filters clean and protects them from ash build up that can block the exhaust system and lead to reduced engine performance. Shell Helix HX8 ECT can be used for modern gasoline engines, diesel engines with particulate filters and gas engines. Specifications, Approvals &