A question about using waste vehicle oil. My plan is not too run at 80 % or anything near, just a couple of gallons once in a while. Is there any combination of paper/other filters I can use with a funnel just to filter out the oil enough to be safe to pump through. The oil is all mine so I know what's in it. Most of the jugs themselves have been sitting for a year or more. The crap's hard to get rid of and I'd rather burn it off anyway. Thanks for any advise.