XP4 15w50 Conventional Oil Case 12 x 1 Quart

The XP4 15W50 Conventional Oil Case delivers a full case of 12 x 1 quart bottles, purpose-built for engine builders, high-performance mechanics, and motorsport enthusiasts who demand reliable lubrication in demanding conditions. This conventional formulation strikes the critical balance between cost-effectiveness and robust protection that serious gearheads need when maintaining street machines, track vehicles, or modified engines operating at elevated temperatures and loads. Whether you're running a vintage hot rod, a turbocharged daily driver, or a weekend racer, having a full case on hand ensures you can perform oil changes without interruption and maintain consistent engine protection throughout the season.

The 15W50 viscosity rating represents a conventional mineral oil engineered for broader operating windows than lighter weights, providing superior film strength and protection at high temperatures—a critical factor for turbocharged, supercharged, or heavily modified powerplants that generate sustained heat. The higher 50-weight viscosity maintains proper bearing clearances and ring seal integrity under sustained boost or aggressive driving, while the 15W winter rating ensures cold-start pumpability in moderate climates. DRIVEN RACING OIL formulates this product to deliver dependable anti-wear protection and oxidation stability without synthetic additives, making it compatible with older valve train designs and traditional engine metallurgy while remaining accessible for budget-conscious build projects.

This case format is ideal for shops, race teams, and dedicated hobbyists who perform frequent oil changes and need bulk supply on the shelf—eliminating last-minute runs for individual quarts during critical maintenance windows. The 15W50 weight suits naturally aspirated engines with tight tolerances, carbureted performance builds, and moderate-boost applications where conventional oil meets specification requirements. Installation is straightforward: simply drain existing oil, replace the filter, and refill to the dipstick mark using the appropriate quart volume for your specific engine displacement and design. Keep a case in your garage or workshop for peace of mind and cost-effective maintenance.