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Discussion Starter · #1 ·
Hello everyone,

I have a Bauer Utilus compressor that runs on an electric motor. I am not sure how old the compressor is but I suspect it is a late 1980s unit. It works perfectly and I’ve been using it these last few weeks after a long lull in my diving. I have recently purchased some new filters for it and also wish to change the oil but I’m not sure if the oil in it at the moment is mineral or synthetic.

Can you advise me, if the oil in it is mineral, can I drain it and install synthetic or will it need stripping down and cleaning out first.

In short, is there a problem changing from mineral to synthetic without any significant work being carried out on the compressor unit?

Many thanks in advance
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