On 17 Jul 2005 10:23:19 -0700, wrote:

>I flushed the entire system, and installed a brand new compressor. The
>Haynes manual says I should pour 2oz of oil each into the evaporator
>and condensor before evacuating the system. However, my R134a bottle
>says that it has oil already mixed in it. My question is, should I add
>this oil, or should I assume that the oil in the refrigirent is enough?
>I assume that I still need to pour some oil into the compressor ports
>to keep it lubricated during startup.

You also are going to replace the dryer and expansion device aren't
you?

You need to take back the cans with the oil already added and get
regular ol' 134a in a can. Make sure the compressor manufacturer did
not already put oil in the comrpessor as well.

Find out how much oil your system takes and add the oil back before
you seal the system up. I do like to spread it across the system like
the book says to avoid slugging the compressor with oil.

Having the proper oil level in the system is critical to compressor
life and system performance. Make sure you have exactly the right
amount!

Steve B.