Fuel injector cleaner in a carb?
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Junior Member
Joined: Jan 2003
Posts: 39
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From: Northern Virginia
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.
Joined: Mar 2000
Posts: 43,187
Likes: 43
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
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... 
Joined: Mar 2000
Posts: 43,187
Likes: 43
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
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.
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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Joined: Sep 2002
Posts: 292
Likes: 0
From: Lehigh Valley, PA
Car: 1986 Pontiac Firebird S/E
Engine: LG4 TPI Conversion
Transmission: 700r4
Axle/Gears: 3.42 SLP Posi 10 Bolt
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.
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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