Super Lube is petroleum based so it will eat rubber. Use silicone grease or silicone spray.
But keep in mind you should replace the O ring every year or so if you want to make sure water doesn't get in there.
i believe feinwerkbau white grease is silicon based. or you could go to your nearest shop for diving equipment and get high quality silicon grease they use on o-rings.
A very expensive alternative is Krytox GPL 105.
It works great on airgun seals, convertible car top seals, and cub scout pine box derby axles.
One small 1 ounce bottle will last a lifetime http://www.amazon.com/DuPont-Krytox-Lub ... B0096VV9ZE
But the best economical answers have been already suggested, any silicone based lubricant will work. Dive shop sourced silicone lubricants will guarantee no petroleum content. (Because high pressure air plus petroleum = boom)