BenzWorld Senior Member
Date registered: Jan 2005
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RE: Switch from York to Sanden? R134???
R134a is about to phased out and banned because as was known for years ,it is a worse gas than R12 ever was !so don't waste your money on a conversion.You will need to replace both the hoses,flush the entire condesor and evaporator to get rid of the mineral oil,change over to ester oil ,fit a high pressure safety switch and replace the filter dryer for a 134a compatible device.All that nonsense for 80% efficiency.
What i do,and it is highly illegal here,but not where you are,... is Top up with propane.It is compatible with your seals and hoses oil etc ,it's cheap and if you go over the hoses and so on with soapy water to find where your leaks are and repair them,will work great for years.
in the last 4 years over 20 million new cars have been fitted with the propane/butane gas called r390 so it's not a new idea.Also ,because it's mixed with other gasses ,it wont burn,so don't worry about the danger of explosions.