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Carburetors Carb discussion and questions. Upgrading your Third Gen's carburetor, swapping TBI to carburetor, or TPI to carburetor? Need LG4 or H.O. info? Post it here.

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Old 05-16-2003, 07:14 AM   #1
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Fuel injector cleaner in a carb?

I just put in fuel injector cleaner in the tank of my 84 trans am (carb). I wasn't really thinking that it wasn't fuel injected, will this hurt my car at all? I used STP Fuel Injector cleaner, right after I changed my oil.
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Old 05-16-2003, 08:44 AM   #2
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No problem. They're basically the same stuff, designed to loosen up crud in your fuel tank, plug the pick-up screen, and clog the fuel filter...
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Old 05-16-2003, 05:32 PM   #3
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so then should i never use those products? I've heard that they're pointless from some, but never really bad. I guess I'll just change the fuel filter now.
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Old 05-19-2003, 12:56 PM   #4
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No, not really. I had a bad experience with STP several years ago, that's all.

I use a small dose of fuel additive cleaner with every fill-up. If the car has sat around unused for any length of time, or poor quality gas used regularly (haven't heard of that type of problem recently), then adding a cleaner can do what I said above.
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Old 05-22-2003, 12:01 AM   #5
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I use it frequently

I use it because it tends to do a better job than the carb/fuel inj stuff in a white bottle.

Look at it this way, it wouldn't be sold over the counter if it would do harm to a carb, otherwise there'd be even more law suits.

I like STP, but for about the same price you can also get Berryman B-12 Chemtool, which I feel is a better product. I usually put half the bottle in my COLD crank case and run it 5 minutes to flush the motor out before I change oil. The other half goes in the tank at about 1/2 tank.
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Old 05-22-2003, 12:01 AM
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