I've got a 1986 ea82 using the stock A\C compressor as onboard air for a long time without trouble, use a few drop's of duralube or some kind of slick oil aditive for lubercation every other use. The compressor work's great for air horn's, tire inflation, tools, & blowing out my filthy ride. I have seezed the pump on hot day's , but it will unseeze & work again usualy once or twice. To oil the compressor turn it on & pour a little down the suction side, I haven't run it with a filter for year's, but that depend's on how dusty it is when using the air, use a pressure switch, blow off valve, air tank,& dash mounted switch for the pump