Just to lubricate the rubber
seals in the
Quick connect fitting use the lube least harmful to the rubber. It is a very small amt. if I understand ur question
Less than a teaspoon if that won't hurt anything. And it probably won't get in the system anyway
Auto trams fluid. Or
power steering fluid
Crankcase oil or even vasoline
Also the
compressor is ful of the correct
Oil.
Weather it's possibly to or worth it to
Open system to get a teaspoon out of it
Is debate able. U would have to tilt the comp far enough over to pour some out
Got the old one. Lots of oil n there