A/C Oil quantity question

[lee]

My A/C now seems to be functioning fine, but I'd like to keep it that way for awhile.

Here's my situation. I bought the car a few months ago and to start with, the A/C never worked properly. After diagnosis by a tech (for one part of my problem), I changed out the compressor and drier, put in some oil, pulled the system down for 90 minutes and recharged.....

Looking at Alldata, it seems to say two things: 1) measure the amount of oil in the old unit and put back the same amount as what came out, and 2) add 2.4oz (US size). Just 1.1oz came out of the old unit when I drained it.

The issue is, I have no idea how much oil was in there in before tear down (although there were no leaks, just a problem with reed valves in the compressor).

I really wasn't up to pulling the entire system apart, so I made a WAG and put back in 2oz of ester.

The tech who discharged, and after my work, pulled it down and recharged seemed to think it was no big deal. He looked at the old oil and did not recommend a total flush because there was no metal. But then he's not the one who will be buying yet another compressor.

If I hose this one through another round of "why do it right the first time when you can spend so much more (time and money) later on", my wife will make me sweat all summer.

Any thoughts?