(posted this in primers/paint as well) want to know if my spray gun is usable. i set up a clean air line for spray priming, and then bought an el cheapo spray gun from hft. the gun has some oil on the internal parts apparently for lube or preservation from the manufacturer. is this normal? can i cle...

want to know if my spray gun is usable. i set up a clean air line for spray priming, and then bought an el cheapo spray gun from hft. the gun has some oil on the internal parts apparently for lube or preservation from the manufacturer. is this normal? can i clean the gun maybe by spraying some mek o...