It's a good oil in that sub-$2.00 price range. So is Formula Shell and Supertech dino. Exxon Superflow was once included, but around here the price has skyrocketed above $2.
Technically, there is no space in TropArtic, per their web site. But you're likely to find it spelled numerous ways on BITOG, so I'd search multiple ways. E.g. Trop Arctic (with a 'c'), with and without spaces, etc.