HI-COOL - A/C System Additive

Hi-Cool car air conditioning additive HI-COOL A/C System Additive from Highgate Car Air uses state-of-the-art lubricant technology to increase the operating efficiency of your car’s air conditioner. That means up to 15% faster cooling down when you start the car on a hot day, and up to 15% cooler vent temperatures while you drive.

A more efficient A/C needs less energy to achieve your chosen temperature level, so you can enjoy the comfort of a cooler, less humid car with a clear conscience.


HI-COOL creates a lasting boundary lubricant on the surface of all metal components of the air conditioner, including the compressor. This reduces heat caused by friction, gives a smoother surface for less drag, suppresses foaming and creates a greater load-bearing shield.

HI-COOL also improves heat transfer by minimising lubricant migration on the heat exchange surfaces of the evaporator and condenser. By eliminating the energy-robbing barriers caused by stagnant oil build-up and carbon deposits, the system requires less energy and cools more efficiently.


• Penetrates / rejuvenates o-rings, seals and flexible pipe
• Can also be used for hoses, o-rings and rubber parts
• Lower friction, less compressor wear
• Better heat transfer, less engine drag
• Stops oxidation and sludge build up
• Improved system efficiency
• Cooler vent temperatures
• Faster cooling
• Easy to inject
• Takes minutes to install
• Increases compressor life


• Use 30ml/kg


• Cars and Light Commercial Vehicles
• Heavy Duty
• Trucks
• Agricultural
• Transport Refrigeration
• Plus works on almost any other type of airconditioning system - ask us how!