Hello, I'd bet it varies by store. If only a few jokers come in per month looking for coolant AND they'll leave with a generic AMAM, the store won't bother stocking other stuff or loose the shelf space. My local (Wood-Ridge) NAPA fetched my G-05 concentrate from another store in their chain in 40 minutes. Doubtless that is what would happen if a garage called for the same thing. Kira
For places like Walmart a plan-a-gram comes down from corp. as to how every shelf in the store is to be stocked. Now they may be grouped by size of the store and district/state.