What's the difference between gas cleaner, carburetor cleaner, injector cleaner?

[RandomTroll]

We have a Costco near us (which is Top Tier),

The closest to me is 7 miles and not particularly convenient. And one must belong to Costco.

Are you planning to put some product in the gas tank to clean the fuel system? I expect all those product will clean the fuel system more or less equally well. Some of them may possibly not be fully compatible with the materials and sensors used in your engine, fuel tank, and fuel lines. I expect that’s the main difference, their compatibility matrix. Suggest not to add any of them unless there’s a clear reason.

I’m careless about the gas I buy. For the last 13 years I’ve driven only occasionally. I haven’t bought any since February; I didn’t buy any in 2016. I’m pretty sure they’re all harmless. I hope it will dissolve the varnish I should expect and pick up the water. If they do nothing, have been a waste of $1 annually for the last 20 years - c’est la vie.

[Whitey]

Well, if Costco carrying Top tier branded gas is the difference, that settles it: it’s in your head.

The cause of the problem might be falsely attributed, but I seriously doubt the symptoms were imagined by @thegreendrag0n.

[insightful]

…Top Tier. (The SAME GAS they had been selling for a while…)

OR…that’s what Costco wants you to believe…

;-]

[thegreendrag0n]

Well, if Costco carrying Top tier branded gas is the difference, that settles it: it’s in your head.

I bet there are number of things what will never be settled… religion and gas brands are definitely on the list

[ok4450]

Most of the Top Tier stations means going out of the way for me.
So I’ve used non-Top Tier gas for decades without the use of additives and have no issues ever…