Quote Originally Posted by petroteks View Post
Does anybody know how can we determine the presence of used/unused engine oil,base oil , hydraulic oil any kind of oil which is used for lubrication in diesel. I am asking this now we are dealing with sellers who blend this oil with solvents/thinners and sell as diesel.
I don't know of a test - other than a fuel analysis. However, your nose should be able to tell the difference. Jim