Is it safe for me to masturbate?

Ok so i been working on an engine all day my hands are all oil n ****... and i not got any swarfega or whatever its called. If i wash them as good as i can with the old scrubber and hand wash will i be ok to pull my plonker? You know us men like to stay on top of it with our big *** sex drive and **** so im just worried my hands are too greased with the wrong lube. Any tips?