I use Penn oil on my Shimano Spinning rod, and it seems to work fine.

This is Really Old Penn oil too. Like from before my time old. I really should use the Abu Oil that came with my other reels.

What I am curious about is the fancy designer oils people have mentioned. (Something like "super Yeti Red Racer reel lube") I may be off a bit on the name. Are they worth finding, purchasing and then remembering to use?

BTW: John's Sporting Goods, auth Shimano Abu repair, tells me to NEVER rinse my reels off in water after using them in the salt. Just spray them down w/ WD40 and wipe off excess. (at least that's what he said about my baitcaster)