- Buick Ownership
Replacing compressor, condenser and Expansion Valve from Rock Auto parts. The compressor is a UAC brand and came filled with 6.1 oz. of PAG 100 oil, but it also came with a bottle of PAG 46 oil, so dont know the correct weight or amount, the under hood info just says PAG oil. Also cant find the Expansion Valve on my car. Any help would be greatly appreciated.