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Mazda (B2300, B2500, B3000 & B4000 & Tribute)

  1. Slowly discharge system. Remove A/C compressor. Drain, measure and discard old compressor oil from suction and discharge ports. Rotate compressor shaft 6-8 times while draining oil.
  2. If amount drained from old compressor is 3.0-5.0 ounces, add amount drained plus one ounce of new refrigerant oil to replacement compressor.
  3. If amount drained is less than 3.0 ounces, add 3.0 ounces of refrigerant oil. If amount drained is greater than 5.0 ounces, add 5.0 ounces of refrigerant oil. Use new "O" rings on refrigerant lines. Install A/C compressor. Evacuate and charge A/C system. Perform leak test.
  4. When replacing other A/C system components, add specified amount of refrigerant oil. See COMPONENT REFRIGERANT OIL CAPACITIES (MAZDA - FORD FS-10 10-CYL.)  table.
COMPONENT REFRIGERANT OIL CAPACITIES (MAZDA - FORD FS-10 10-CYL.)

Component Ounces
Accumulator (1)
Condenser (2) 1.0
Evaporator (2) 3.0
Other A/C System Components 2.0
(1) Drill two 1/2" holes in bottom of old accumulator. Drain, measure and discard old oil. Add refrigerant oil equal to amount drained from old accumulator, plus 2.0 ounces to replacement accumulator.
(2) Add specified amount of refrigerant oil to inlet of condenser or accumulator.
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