Torco SR-1R 100% Synthetic Racing Oil Maximise your engine's power and durability under the most extreme track conditions with Torco SR-1R. This premium 100% synthetic racing oil is meticulously engineered using a precise blend of top tier Group III, Group IV (PAO), and Group V (Ester) base oils. Enhanced by Torco's proprietary MPZ Plus technology, SR-1R delivers exceptional engine protection and improved mechanical efficiency. Whether you are running a high revving naturally aspirated motor or a heavily boosted setup, this oil provides the shear stability and friction reduction needed to push your engine to the absolute limit. Key Specifications Product Type: 100% Synthetic Racing Oil Base Stock: Group III, IV (mPAO), and V (Ester) Technology: Proprietary MPZ Plus Additive Package Available Viscosities: 10W-30, 10W-40, 10W-60, 20W-50, and 25W-60 Volume: Sold in 1L, 5L or 25L. Performance Benefits Increased Horsepower & Torque: Formulated with an mPAO base and friction-reducing molybdenum (moly) to minimize parasitic drag and free up power. Ultimate Shear Stability: Advanced polymers resist viscosity thinning and thermal breakdown, maintaining oil pressure under severe, high temperature racing conditions. Engine Cleanliness: High solvency synthetic ester technology actively prevents the formation of carbon deposits and sludge in highly loaded engines. Rapid Anti-Wear Protection: A combined primary and secondary zinc package lays down a protective anti wear film quickly upon start up and maintains it under extreme stress. Synergistic Lubrication: The moly and zinc additives are engineered to enhance one another, forming highly protective, ultra low friction films on critical engine components.