R134 a is going up on price. They are looking to replace r-134a now . About 2 years we will see the new stuff. Back on the subject. I would follow Larry's
advise and go back to 12. That car cools better with 12.Especially since you put a reman compressor on it .Those compressors were weak to begin with.

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euro 287
Mercedes Technician 7 Years (retired to Hyundai)
2000 Dodge Durango
98 Mazda truck