I am a new person in the department and I am going thru/redoing the pm program (which is old)I am finding oils in the pm that don't match what we have in our stock. So I did an oil sample of the small crane in question, it came back Omala 320. We don't have Omala 320 in our stock, Yes we can get it, but for the sake of keeping things as simple, our department uses a lot of Omala 220 and 460. My question: can I use Omala 220 or 460 instead of 320 so I don't have to bring in another oil grade into the department?
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