NSX V6-3.0L DOHC (1991)
Refrigerant Oil: All Technical Service Bulletins
A/C - Increase In Refrigerant Oil Amount
February 19, 1991
BULLETIN NO
91-016
YEAR
1991
MODEL
NSX
VIN APPLICATION
thru 001654
Increase in Refrigerant Oil for NSX Air Conditioner
PROBLEM
The amount of refrigerant oil specified for the A/C system has been changed. The new amount is 120 10 cc.
CORRECTIVE ACTION
Add 45 cc (1.5 oz.) of refrigerant oil to the A/C system of applicable cars in dealer stock, and to cars already sold as they come in for maintenance or
repair.
1.
Put 45 cc (1.5 oz.) of refrigerant oil into a Compressor Oil Injector Adapter (Snap-on(R) tool # ACT111, or equivalent).
2.
Attach the adapter to the low-side fitting.
3.
Connect a short (2-foot) hose between the adapter and the high-side fitting.
4.
Keep the adapter upright so the oil will drain into the system, then start the engine and run it at 1500 rpm for three minutes. (Any more overheat
the system).
5.
Spray a small amount of red paint on the low-side fitting and cap to indicate that the car has had this service.
Revise page 22-65 (step 6) and page 22-78 (step 11) in your NSX service manual: Cross out "80 cc (2-2/3 fl oz)" and write-in "120 +/- 10 cc (4 fl
oz)."
