BMW LongLife-04. Passes VW TDI piston cleanliness test (CEC L-117-20) test for piston cleanliness, ring sticking. Passes M271 test for engine sludge. Passes M271 test for cam and piston ring wear. Passes OM646LA test (CEC-L-099-08) for cam wear (inlet/outlet), cylinder wear, bore polish, tappet wear (inlet/outlet), piston cleanliness and engine sludge.
eBay