SR-5R Synthetic Oil 5w50 Case/12

The SR-5R Synthetic Oil 5w50 Case/12 from TORCO is engineered for high-performance automotive applications where engine protection and thermal stability demand a premium synthetic formulation. This 5W-50 viscosity grade bridges the gap between year-round convenience and extreme-condition reliability, making it ideal for modified engines, turbocharged platforms, and vehicles operating in demanding climates or aggressive driving scenarios. A full case of 12 quarts provides the quantity needed for complete system fills, flushes, and routine maintenance cycles on medium to large displacement engines without restocking frequently.

Synthetic base stocks in TORCO's SR-5R formulation deliver superior oxidation resistance and extended drain intervals compared to conventional mineral oils, critical for turbocharged and supercharged engines where heat stress accelerates degradation. The 5W cold-flow rating ensures reliable cold-start performance in winter conditions, while the 50-weight hot viscosity maintains robust film strength under sustained high-temperature operation—essential for engine modifications that increase combustion temperatures or boost pressure. Advanced detergent and anti-wear chemistry protects cam lobes, valve trains, and bearing surfaces from premature wear, preserving tight tolerances in precision-built or rebuilt powerplants.

Mechanics and engine builders favor TORCO SR-5R for naturally aspirated performance builds, forced-induction platforms, and vintage restoration projects requiring modern lubrication without sacrificing authenticity. The 5W-50 viscosity suits vehicles with tight-tolerance machine work, upgraded camshafts, or high-rpm applications where lightweight synthetics might film-out under load. Confirm compatibility with your engine's specification or builder recommendations before application; the individual 1-quart bottles within each case allow for convenient topping between full-service intervals.