the way I do it posted by Zvil (FL) on April 03, 2014 at 02:52 PM
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If its brand spanking new but in the amount the capacity is listed at in the manual. Like I said I think its 4oz. Make sure its r134a rated oil. If it's an older used compressor you can flush it out with R134a rated oil. I don't no how much oil sits in there but even after flushing it you should be able to put in close to whatever the capacity listed amount is. Or measure what you poured in to flush it and them measure what comes out to see if any stays trapped inside as to not over fill.
"torque gets you off the line...& hp gets you over the line." - TTKeeper