Yes, that's a tiny little amount for sure. I don't bother with the injector cleaners; I get the fuel system cleaners, too. The ironic thing is that some of our retailers seem blind to the product tiers and sometimes the injector cleaner is more costly than the all in one product. Up here, I used to use the Regane Fuel System Cleaner or their HM version when our Canadian Tires used to have 50% off specials, or Red Line SI-1 from my other supplier, which used to be at a very good price. It's gone up a fair bit. Now, we don't get those Regane specials any longer, but Walmart has brought in some decent products, so at least there's availability.
Honestly, Canadian Tire would do well for themselves to take 75% of the products in their additive aisle, dump them in a shopping cart, and push that load of garbage to the hazardous waste disposal people. Our Walmarts, at least in this city, have cut down their automotive sections quite a bit, and the additive section got reduced. At least they kept some useful things, like PEA cleaners and real fuel stabilizers.