STP Super Concentrated Fuel Injector Cleaner contains concentrated detergents that help dissolve and remove harmful carbon, gum, and varnish deposits on fuel injectors. Without cleaning, deposits can lead to hard starts, lost acceleration and rough idling. This product is made with jet fuel, a high-quality carrier of active ingredients.
- High quality carrier of active ingredients
- Safe for all gasoline engines
- Unclogs dirty fuel injectors
- Made with jet fuel
- Made in USA






















Keith –
Exactly what the product description says it is. Dumped this into my 1998 Toyota Corolla to help the tired, 140,000-mile old injectors. Of course, I didn’t notice any difference, but this is recommended by mechanics to do on older injectors. Price was better than my local autoparts store.
Neva Steffens –
Works very well for an older car like mine.
Bgcrew08 –
Very good price
R. S. –
Thought this had a long enough neck to handle the 2011 Mustang capless fuel tank, but alas, no. Thinking I had emptied the contents into my fuel tank I look down to see a brown puddle around my rear tire. So, unfortunately I have no idea if this works or not. On the plus side, now I know Iโll need to get myself a funnel if I want to try again. Otherwise, just going to have my mechanic add some in at my next oil change.
JK –
I used this in the gas tank of my Subaru and noticed my gas mileage increased from 21.3 mpg average to 24.5 mpg average after a few days of using it. I put half a bottle in at a half tank then used it to about a 1/4 of a tank of fuel, then filled it up to a little over half if a tank again, and dumped the rest of the bottle in. I noticed an increase of about 3 mpg which is great! I guess I had a dirty or clogged fuel injector.
Papa –
Product arrived in perfect condition, would recommend to others
Robert Frate –
Hi, cleaned the injection system very nicely,
Rodney Z –
I averaged 32MPG using premium gasoline in my car, when I added the cleaner, I averaged 44MPG. Steady state with new tanks of gasoline, I still average 36MPG.Worth the money