Speaking from Down Under, one of our favorite pastimes all year round is boating and fishing in the Coral Sea. Each time we come back, I give the outboard, a 60hp 4s EFI Mariner, a thorough wash and a spray with a water dispersant. The only spray used and also recomended by our Coast Guard is "Inox". We never ever use WD40 on our boat or engine. This stuff is real bad news for ANY electrical wiring and or electrical components. The Inox is a bit more expensive but is cheap in the long run. I spray the entire surface of the outboard inside and out (including all the electricals) and the Inox is still there when I come home. Needless to say that I use Inox on all my firearms. I use WD40 to clean the slides of my lathe, lube the nuts on my boat trailer and car and not much else. I use it when I want to unscrew nuts and screws only because its handy being kept on the lathe. It makes a first class spray lube when machining Aluminium, especialy when parting off alloy washers and block and tackle pulleys (like for a certain cannon). If I want to undo something that is jambed near welded with rust or whatever, I soak in in a tub of diesel fuel. diesel fuel will penetrate through cast iron that has been machined. I have seen it penetrate 1/2" thick Cast Iron overnight and drip off the other side in the morning. WD40 gums up everything it is sprayed on and won't stop rust from forming when long term protection is needed. If used on triggers it will slow the lock time because of the gumming. It does displace water but no-way is it as good as Inox.
:m2c:
Joe / Wedge