Just use a universal ester oil will work but I would really need to know what type of vehicle you are working on.........
It's only Freon if it was manufactured by DuPont, but to the important things... Your 89 would have had an R12 system from the factory. You can't use R134a in an R12 system unless you do at least a partial retrofit (evacuate all the R12 and compressor oil, replace the orifice tube, replace the accumulator, replace the hose connections, add PAG oil and R134a).
The EPA states that the "procedures required for a least-cost retrofit are simple and do not require major component changes. Generally, the process calls for the removal of the oil refrigerant, installation of new fittings and a new label and the addition of either a polyalkylene glycol (PAG) or polyol ester (POE or ester) lubricant as well as the R134a refrigerant"... EPA There are many retrofit kits on the market you can get from an auto parts store like Autozone or Advance and even at discount stores like Wal-mart. ID and Quest are two brands on the market that have closed retrofit kits available.
It uses R134a.It uses R134a.
It uses R134a.It uses R134a.
It uses R134a.It uses R134a.
You add it very expensively as it is the cost of gold. You will have to retrofit the system to R134A.
3.5 psi should hold it steady.
Depends on what you are retrofiting from- to? R-22 to R-410a or r-12 to r134a?
It uses R134a refrigerant and green antifreeze.It uses R134a refrigerant and green antifreeze.
i belive its r12 ... but just get a retrofit kit so u can make it a r134a
Freon is a brand name. It uses R134a refrigerant.
R134a is all that is available If you have an R12 system You have to retrofit to R134a I didn't go through the hassle of changing the entire system to r134a I just recharged the system with the new freon and it's working just fine. The coolant even last longer.