A/C Compressor 190E 88, locked up

[cfxxc]

I have a compressor from a 1991 190E and I would like to install it in to my 88 190E and recharge with R12, the compressor is a 10PA15C.
I have the condenser, expansion valve and evaporator also from the 91.
Up on inspecting the open ports on these items it looks like the system was never used, the oil I drained out of the compressor looked like new.
would the 91 be a R134 car or R12 and does it matter to the compressor.
Chuck

[lorainfurniture]

I'm pretty sure the change took place after 92. Either way it is the same compressor. Just make sure you flush the oil and add your own.

[cfxxc]

One more question what kind of oil should I use?
Chuck