MotorVac CoolSmoke High Pressure Leak Detection SystemMotorVac CoolSmoke High Pressure Leak Detection System with New "Cold Smoke" Technology The Cool Smoke HP is the next generation of diagnostic leak detection for forced induction gasoline and diesel engines. The Cool Smoke HP delivers market leading ease of use, reliability and leak detection. The Cool Smoke HP delivers dense smoke across its entire operating range of 3 60 psi unlike competitive products that must reduce smoke output at higher