2-Step Coolant Service Kit Case 12 x 12oz

The 2-Step Coolant Service Kit Case 12 x 12oz from REDLINE OIL is a professional-grade thermal management solution designed for serious automotive enthusiasts and mechanics performing complete coolant system maintenance. This case format—containing twelve 12-ounce bottles—is ideal for shops, fleet operators, and performance builders who need consistent, reliable coolant servicing across multiple vehicles. Whether you're maintaining daily drivers, race platforms, or modified engine builds, this kit delivers the chemical sophistication required to protect modern cooling systems from corrosion, cavitation, and thermal breakdown.

REDLINE OIL's two-step formulation works by first flushing accumulated scale, rust, and particulate matter from the entire cooling circuit—water jackets, passages, radiator cores, and heater lines—before a secondary treatment condition and passivate the system for extended protection. The chemistry resists pH drift, maintains viscosity stability across extreme temperature swings, and prevents electrochemical corrosion of ferrous and non-ferrous metals common in aluminum heads, cast-iron blocks, and copper-brazed radiators. Each 12oz bottle is engineered to treat a significant system volume, making this bulk case format economical for professional use while maintaining the precision dosing mechanics demand for modified engines running higher coolant temperatures and pressures.

This product is essential for any shop performing water pump replacements, radiator rebuilds, engine overhauls, or transitioning vehicles to upgraded cooling components—particularly those with turbo or supercharger installations where heat rejection demands exceed OEM specifications. The case quantity supports professional technicians and serious hobbyists maintaining fleets or multiple project vehicles, eliminating the need to source individual bottles repeatedly. Compatibility spans domestic and import platforms; always consult your vehicle's factory coolant specification before application, as REDLINE formulations are designed to work with modern extended-life coolants and provide measurable protection gains in both stock and heavily modified cooling systems.