I'm sure gas varies in Canada depending on location but I've seen other logs here where map 2 was pushing it on Canadian premium so definitely worth logging as he moves up the maps/boost.
Depends on your “premium”. Esso 91 is pretty much topped out at Map 1. Petro Canada 94 however...more likely limited by is12 capacity. Find you favorite local pump, set it up there and consider falling back to M1 on road trips.