Hi All, I was hoping someone could answer a question for me on R134a. I will be pressurizing my system soon, and wondered which compressor oil was a better substitute for the original on a total conversion-- Esther, or PAG. My system has a brand new compressor, o-rings and accumulator, and the hoses, condensor and evaporator have all been flushed with a/c system cleaner. I bought 3 pounds of R134a and a can of the cooling additive (it works pretty well, surprisingly), but realized I didn't know which oil to use. This will be my fourth conversion to R134a on cars (2 Fords and an Audi) I've seen a lot of mention on R134a in the archives, but no 'final answers' ever surfaced. If anyone has some help they could provide, please let me know. Thanks, -Dave Stragand VIN #05927 http://www.ProjectVixen.com