CASTROL EDGE SYNTHETIC 5W-30 ENGINE OIL A3B4 1LPart No. 3421197 Type ENGINE OIL Brand CASTROL Unit of Measure EACH Description Castrol EDGE Synthetic 5W 30 Engine Oil A3 B4 1L Warranty No Warranty Type Full Synthetic Item Type Oil (Engine) Viscosity 5W 30 Litres 1ltr ACEA specification A3 B4 API specification SL Features Transforms to be strongest when the pressure is highest, protecting your engine Reduces power robbing friction across engine speeds and conditions Independently tested at the