[Cajundaddy]

WD-40 is a penetrant, water displacement, rust inhibitor, and light lubricant. I like using it to free up rusty hinges, tools, and most things that should move freely but don't. It will attract dirt if used outdoors and with low viscosity it doesn't stay in the game long but still always in my tool kit.

Another light viscosity spray lube I like is Tri Flow Teflon. It goes on easily and tends to stay in the game longer than WD-40 without attracting dirt. I don't think it is as effective as a penetrant or rust inhibiter as WD.

For heavier lube when motor oil won't work I like 100% silicone grease. It works well and is recommended for o-rings in contact with water to lubricate and protect. A little of this spread lightly on rubber tends to protect from cracking.