Hi Rodger,
Yep, you are correct. I am not running an oil free system. I do not use oil in my lines, as some are set up to do because of all the air tools blasting away down stream. Each of my air tools has individual oilers on them. The only oil in the line or tank should be because of ring blow by and I am hoping that is going to be very little because the compressor was installed on 27 Feb. 13 and broke in for the recommended number of hours and then the oil renewed. I don’t think I have used it for more than 5 hours in a year so far. I will blast away at a glass plate and then look it over good. If I need to add an oil removal filter to the line I will. Just found one that will pass 150SCFM and filter to 0.03 micron and has an auto water dump valve included.
Good catch, thank you. John