Ranger 2WD V6-245 4.0L VIN X SFI (1997)
compressor piston rings may discolor the oil.)
When replacing the suction accumulator/drier, the procedure given here must be followed to make sure that the total oil charge in the system is
correct after the new suction accumulator/drier is installed.
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Drain the oil from the removed suction accumulator/drier into a suitable measuring container. It may be necessary to drill one or two 1/2-inch
holes in the bottom of the old suction accumulator/drier to make sure that all the oil has drained out.
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Add the same amount of clean new refrigerant oil plus two fluid ounces to the new A/C compressor. Use only the oil specified.
All A/C compressors use oil that contains special additives not found in most other refrigerant oils. This refrigerant oil is Motorcraft Part No.
YN-12b or an equivalent oil meeting Ford Specification WSH-M1C231-B. This oil is a mandatory requirement because of the aluminum swash
plate used in Ford 10-cylinder compressors. The use of any oil other than one meeting Ford Specification WSH-M1C231-B could result in
reduced suction accumulator/drier life.