Hi, recently my Leon cupra 280 from 2014 had an engine problem which caused the crankshaft, connecting rods, rings and oil pump to fail. So I purchased a forged crankshaft, Bartek forged connecting rods and a set of ACL connecting rod and crankshaft caps, a set of original piston rings and an oil pump. My question is what type of oil should I use. Currently the car uses 5w30 castrol LL.
