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Re: Re: Re: is lead additive necessary?
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Posted by Bob on July 20, 2004 at 21:52:43 from (66.163.134.177):
In Reply to: Re: Re: is lead additive necessary? posted by Allan in NE on July 20, 2004 at 17:44:00:
It's not so much that the older compressors are not compatible with the R-134A, it's the OIL in the old compressors that's not compatible R-134A. The compressor will die from lack of lubrication if R-134A is used with the original mineral oil, even though there is still oil in the system. If too much old oil is left in the system and Polyol Ester oil is added the result can be a system full of disgusting sludge, and if PAG oil is added to a system with mineral oil in it, the results are even worse! If you get as much mineral as possible out of the compressor, flush the system, replace the dryer, and add the correct amount of polyol ester oil before evacuating the system and recharging with R-134A, it will work great!
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