Very high performance competition semi-synthetic engine oil for older engines, based on highest quality performance additives and shear stable viscosity improvers in synthetic and mineral base. Use for lubrication of competition engines derived from production engines manufactured between post war period and early 80s. Specially designed high viscosity formulation to protect competition engines running at very high temperatures and/or endurance events. Ideally suited for use in high performance competition engines such as Jaguar, Austin Healey, MG, TR, Aston Martin as well as American V8’s. Ideally suited to modified Ford Kent and Pinto engines in all sectors of motorsport.