has a tongue and grove ‘split’ running it’s full length

Works on most vehicle types and most filament bulb and LED lamp combinations

reduces friction

most vehicle rear/headlights come with a protective coating on the lens

Shell Helix Engine Oil Ultra Pro AF 5W-30 5L DPF Cleaners has a tongue and groveShell Helix Ultra Professional AF 5W 30 5L Fully Synthetic Motor Oil Tailored to meet engine manufacturer special requirements Performance & Features Fuel efficiency Passes ACEA fuel economy M111FE (CEC L 54 T 96) with a minimum of 3 % fuel efficiency improvement. Engine wear and durability Passes Ford in house test for valve train wear. Passes ASTM ball rust test (ASTM D6557) for engine rust. Passes Sequence IVB wear test (ASTM D8350) for valvetrain