Recharging your Aircon
With normal usage your vehicle Aircon will lose some of the gas used every year. Estimates vary but some estimates say up to 10% of air-con gas permeates from the system every year, Its similar to your engine that will require oil to be topped up regularly, or tyres that need pumping up, resulting from normal usage. The resukt for Aircon is that it may not work to maximum efficency. For this reason, manufacturers recommend your Aircon system is recharged with gas and lubricant reguarly. This does not form part of your normal service routine so your vehicle may be ready for checking and recharging, if more than a few years old.
Aircon systems not fully recharged impact the vehicle performance. Using a partially charged Aircon system will required more fuel usage to keep the compressor running as it need to work harder.