Want to maximize fuel efficiency and avoid problems such as rough idling, weak acceleration, stumbling and stalling? STP fuel additive products can help. Our redesigned fuel additive bottles are compatible with cap-less fuel tanks. STP Complete Fuel System Cleaner removes deposits from your entire fuel system. This STP formulation helps clean your entire fuel system in order to restore it to its optimum operating condition. It contains jet fuel, a high-quality carrier of active ingredients.
- Save gas by keeping fuel intake system clean
- Helps restore performance
- Removes deposits from entire fuel system
- Helps inhibit corrosion
- Compatible with cap-less fuel tanks
- Flash point: 54.0 degrees_celsius




























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The Great One –
So it helps give cheaper(non Top Tier) gas a little boost. This won’t solve check engine problems(yeah sometimes a gas tank fuel of good gas can) but it seems to help in the mpgs after a few fuels ups. I’ve been using it for about a month. If you have a capless system get a funnel as it seems to get jammed in and breaking something while adding a fuel treatment is going to drive you crazy and cost $$$. I’d expect about 1mpg overall but don’t drive like a loon and you’ll be amazed at your gas savings.
Shyamalam –
Good one to depend on.
stuart m. crane –
My Honda Civic has over 330,000 miles. I live in the country in northern Michigan and The STP helps me feel secure that my car will run in all types of temperatures, humidities and dust. I am grateful for a fine operating vehicle and STP in the gas on occasion gets me through all seasons.
NAWELL –
I have a F150 5.0 v8 .. and as I read in multiple forums, that engine usually has some rattling noise.. someone called it “fuel rattling” well.. I put this one and the noise didn’t show up in the last fuel fill..!
TIFFANY –
Sadly ???? it no more in stock for purchase
N.S. –
My local store was out so I got it from here. If you have an older car, this is essential for maintenance.
Azulcielo –
La reseña o el titulo dice cuatro articulos, pero solo viene uno, osea, vale mas comprarlo en la estacion de gasolina que mandarlo a pedir. total sale mas economico comprandolo directamente en la gasolinera que mandarlo a pedir online.
Bdiddy –
I use the stuff as directed, and I’ve never had fuel system issues with any vehicle I have ever owned, my friends have, and they don’t use this product. It is great.