This is 4 litres of semi-synthetic 10w40 Castrol Power-1 engine oil suitable for theSuzuki GSF1200S K1 / K2 / K3 / K4 / K5 / K6 faired Bandit MK2 models (2001-2006). Castrol Power 1 conforms to the following specification: SAE10w40; JASO MA-2; API SN.