Due to the impact on the environment, the old R134a refrigerant gas is now being replaced by the new R1234yf gas on all new cars. The process for servicing your a/c system is the same as the old gas, but it needs to be charged using a new service station. Due to demand at the end of last year we have decided to purchase the new machine in able to offer our customers an on going complete service. These two gasses are not compatible so vehicles with the old gas still have to be serviced using the old service station. The price of this new gas is significantly higher than the old gas at the moment but over time this will level out. For more info on which gas your vehicle has or for any air conditioning queries please don't hesitate to give us a call.