Silkolene Super 4 SX 10/40 1 Litre Semi-synthetic 4-stroke engine oil using MC-Syn Technology for all modern off road motorcycles. Based on high quality multi-grade mineral oil and incorporates detergents dispersants and load carrying agents to give excellent engine cleanliness and minimal wear of moving parts. Contains a balanced blend of inhibitors and anti-wear agents to ensure precise and slip-free clutch operation. Advanced inhibitors and high quality mineral oil base minimise internal sludge and varnish deposits.