Just wondering what the general thought is regarding a pressure tap on a diesel. I've got a paw .35 and would like to know if I should pressure tap it or not. Is this a try-it-and-find-out if I need it kind of thing, or is there some principal I'm overlooking? I've also heard that because the exhaust is so thick that it is a bad thing to get back in the tank (from the pressure tap line).

Thanks for any advice in advance.