Automotive
Automotive A/C
Automotive air conditioning is standard equipment on virtually every passenger car, light commercial vehicle and truck produced today — and the A/C compressor is the heart of the system. Whether servicing existing vehicles, supplying the aftermarket or supporting vehicle manufacturers, lubricants for automotive A/C compressors must be matched to the refrigerant, compressor type and system design to protect the compressor and maintain system performance.
NEXT Lubricants supplies compressor lubricants and additives for automotive A/C systems across passenger cars, light commercial vehicles and heavy transport applications.
Compression process
Automotive A/C — Process, Applications & Compressor Role
Automotive air conditioning systems work on the same vapour compression refrigeration cycle as industrial refrigeration — but in a compact, vehicle-integrated package operating under conditions that change constantly with engine speed, ambient temperature, passenger load and system demand. The A/C compressor is driven by the engine via a belt or electrically in hybrid and electric vehicles, compressing refrigerant vapour and circulating it through the condenser, expansion device and evaporator to cool the cabin.
Unlike industrial refrigeration compressors, automotive A/C compressors circulate lubricant throughout the entire refrigerant circuit with no dedicated oil separation — the lubricant must remain miscible with the refrigerant across the full operating temperature range of the system and compatible with all system materials including seals, hoses and heat exchangers.
Passenger Car A/C Service & Maintenance
A/C service in independent workshops, dealer networks and fast-fit operations requires refrigerant and lubricant top-up products matched to the vehicle's refrigerant type and compressor specification, covering the large installed base of R134a and growing R1234yf vehicles.
Electric & Hybrid Vehicle A/C
Battery electric and hybrid vehicles use electrically driven A/C compressors where the lubricant must also provide electrical insulation in addition to lubrication and refrigerant compatibility — requiring specifically formulated low-conductivity lubricants for electric compressor applications.
CO₂ (R744) Automotive A/C
CO₂ is gaining adoption as an automotive refrigerant in passenger cars and commercial vehicles, driven by its ultra-low global warming potential and strong thermodynamic performance. CO₂ automotive A/C systems operate at significantly higher pressures than R134a or R1234yf systems, requiring specifically formulated lubricants compatible with CO₂ at automotive A/C operating conditions.
Related Applications
Explore Other Automotive Applications
Automotive A/C is one part of NEXT Lubricants’ automotive product range. We also supply the following
Automotive Additives
A/C system additives including leak detection dyes, seal conditioners and system treatments for automotive air conditioning maintenance and service operations.