Silkolene Super 4 10w40 Semi-Synthetic Engine Oil 2 Litres. Silkolene Comp 4 10W-40 XP 4-Stroke Motorcycle Engine Oil. Silkolene Comp 4 10W-40 XP is an ester-based semi-synthetic 4-stroke engine oil with Electrosyntec Technology, designed for all high-performance motorcycles that require a 10W-40 engine oil.
