Epo gbigbẹ, sensọ turbidity epo hydraulic, epo lubricating, epo hydraulic, ati bẹbẹ lọ ti wa ni ipamọ tabi ṣiṣẹ ni apo omi kan pato.Nigbati didara epo lubricating, epo hydraulic, bbl yipada nitori iṣẹ ṣiṣe igba pipẹ, didara epo rẹ yoo yipada, eyiti yoo ni ipa lori ifihan agbara gbigba igbagbogbo, ati lẹhinna ni ipa lori abajade ti ifihan agbara itanna.