On Jun 9, 10:56 am, wrote:
Does anyone know why my instructions ask me to put oil in my Porter-
Cable nail gun once per session?

Is it helping to lubricate the nails as they go into the wood? Is it
helping to lubricate the inner workings of the gun?

What happens if I don't put oil in? Does it result in premature
wearing of the tool?

Thanks,
Tim

I am not an expert, but-

Oiling does nothing to lube the nails as they go in. It is for the
inner working of the gun. Not oiling it will result in premature wear
on the tool, the failure of the seals and O rings, and possible
internal rust.

JK