I stopped by Napa for ____s & giggles, even though I need oil and auto care stuff like I need a hole in the head. I usually half-rudely brush off all the aggressive sales folks who attack me when I walk through the door, but this time I let them find me some Castrol 5w-40 on sale (sales advert showed the black-bottle Castrol Syntec 5w-40 on sale). I'm glad I did, because he went back and brought me a case of something I've never seen before --> Castrol "OE Professional" Edge 5w-40 in the gold bottle. I thought for sure this stuff would be priced higher than the black-bottle stuff, but much to my surprise it was the same $5.79 a quart. I grabbed six and now I have this stuff, but I don't really know much about it or what it really is. Anyone have some information, PDS, experience, etc. with this stuff? It mentions something about being fluorescent, I wonder if it's green like the old GC. Maybe it even smells like gummy bears. I haven't opened one yet to find out. This stuff looks ideal for my '09 Caliber which calls for 0w-40 Mobil1. Here's some shots of the bottle: What say you?