The ones I have do use oil in the base, they are tough as nails as far as I am concerned, mine are used for finish nailing, house after house mostly in 3 - 5 day runs, big time hours on them. Our framer runs the same compressor, his crew beat the absolute snot out of them outdoors in all types of weather and temperatures, they carry a heat lamp and a box they cover the compressor under with the heat lamp on during the winter months. They do both the framing and asphalt shingles with this gear and most often the compressor lasts them 3-4 years per crew, when they finally give up the ghost there is next to nothing left of them worth keeping, beat I tells ya!
