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.
Scientifically engineered with 3X the amount of cleaning agents vs. the leading premium gasoline*.
Scientifically engineered using advanced cleaning technology to keep all your engines running in top form. It contains 3X the amount of cleaning agents vs the leading premium gasoline to remove an average of 61%** of harmful intake valve deposits and restore an average of 95%*** of the original injector performance. This product also contains fuel stabilizer to help keep fuel fresh during storage. Compatible with gasoline engines (2&4 stroke), inclusive of boats, motorcycles, and lawnmowers.
Usage FrequencyUse as directed
Treat Rate20 fl. oz. can treats up to 20 gallons.
Take Note!STP ULTRA 5-in-1 PLUS Fuel System Cleaner + Fuel Stabilizer is safe for all gasoline engines.
*One bottle contains 3X by weight the amount of cleaning agents compared to 20 gallons of the leading premium gasoline.
**Average result of 6 modified ASTM D5500 and D6201 tests.
***Results based on ASTM D5598
This all-in-one Diesel solution helps clean the fuel system to maximize diesel engine performance. Formulated to help save fuel by cleaning the fuel system, boost cetane to help improve combustion, improve lubricity, prevent fuel gelling and provides corrosion protection.
Usage FrequencyUse every 4,000 miles
Treat Rate12 fl. oz. treats up to 35 gallons
32 fl. oz. treats up to 100 gallons
Take Note!Suitable for Turbo Engines and Biodiesel safe. Developed for diesel cars, SUVs and trucks
High-performance detergents and friction modifiers come together to form a one-source solution to help: save gas by deep cleaning the entire fuel system; restore peak performance; reduce friction; prevent ethanol deposits; and inhibit corrosion.
Usage FrequencyUse every oil change or 4,000 miles
Treat Rate12 fl. oz. bottle treats up to 35 gallons of gasoline.
Take Note!STP® Ultra 5-in-1 Fuel System Cleaner is safe for all gasoline engines and works with direct inject, hybrid and turbo systems.
*Amount of cleaning agents per bottle measured by weight, compared to 35 gallons of the leading premium gasoline.
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.
Usage FrequencyUse every oil change or 4,000 miles.
Treat Rate5.25 fl. oz. bottle treats up to 21 gallons of gasoline.
12 fl. oz. bottle treats up to 28 gallons of gasoline.
Take Note!STP® Complete Fuel System Cleaner is safe for any gasoline engines.
*Amount of cleaning agents per bottle measured by weight, compared to 28 gallons of the leading premium gasoline for 12 fl oz size bottle, and 21 gallons for 5.25 fl oz size bottle.
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.
Usage FrequencyUse every oil change or 4,000 miles.
Treat Rate5.25 fl. oz. bottle treats up to 21 gallons of gasoline.
12 fl. oz. bottle treats up to 28 gallons of gasoline.
Take Note!STP® Super Concentrated Fuel Injector Cleaner is safe for any gasoline engines.
Without cleaning, deposits can lead to hard starts, lost acceleration and rough idling. STP® Fuel Injector & Carburetor Treatment is specially formulated to maintain clean performance of fuel injectors and carburetors by helping to prevent the accumulation of deposits. It’s made with jet fuel, a high-quality carrier of active ingredients.
Usage FrequencyUse regularly when you fill up your tank.
Treat Rate5.25 fl. oz. bottle treats up to 21 gallons of gasoline.
12 fl. oz. bottle treats up to 28 gallons of gasoline.
Take Note!STP® Fuel Injector & Carburetor Treatment + Upper Cylinder Lubricant is safe for any gasoline engines.
STP® Gas Treatment improves the quality of gas by adding powerful cleaning agents that help fight the accumulation of harmful carbon, gum and varnish deposits in the fuel system that can reduce performance. Also engineered to remove water, which can lead to fuel line freeze. This product is made with jet fuel, a high-quality carrier of active ingredients.
Usage FrequencyUse regularly when you fill up your tank.
Treat Rate5.25 fl. oz. bottle treats up to 21 gallons of gasoline.
12 fl. oz. bottle treats up to 28 gallons of gasoline.
Take Note!STP® Gas Treatment is safe for any gasoline engines.
This two-in-one formula boosts octane and cleans the fuel intake system to restore lost performance.
Usage FrequencyUse regularly when you fill up your tank.
Treat Rate5.25 fl. oz. bottle treats up to 21 gallons of gasoline.
12 fl. oz. bottle treats up to 28 gallons of gasoline.
One of the most recognized brands in racing, STP® has a long history in the world of motorsports, and of providing trusted performance products. STP® Racing Series Octane Booster is scientifically formulated using a combination of powerful ingredients to maximize performance and eliminate the pre-ignition that can occur with lower-octane gasoline.
A multi-use ethanol treatment with fuel stabilizers that helps combat the negative effects of ethanol fuels (E10, E15 and E85). Works with two- and four-stroke engines.
Treat Rate12 fl. oz. bottle treats 40 gallons of gasoline.
Take Note!STP® Ethanol Fuel System Treatment with Fuel Stabilizers works with all gasoline-powered 2- and 4-stroke engines.
STP Direct Injection Fuel Injector Cleaner is a PEA based high performance formula scientifically engineered to dissolve hardened deposits that accumulate on injectors in vehicles with Direct Injection systems. Without cleaning, deposits can lead to hard starts, lost acceleration and rough idling.
Usage Frequency:Use regularly as you fill up your tank.
Treat Rate:Treats up to 28 gallons of gasoline.
Take Note!STP Direct Injection Fuel Injector Cleaner is safe to use in any engine and is compatible with cap-less gas systems. Will not void warranties.
STP Emissions Reducer + Fuel System Cleaner is a pre-emissions test treatment formulated to lower emissions by removing deposits from the entire fuel system and clean components that affect emissions.
Usage Frequency:Use as needed.
Treat Rate:Treats up to 21 gallons of gasoline.
Take Note:STP Emissions Reducer + Fuel System Cleaner is safe to use in any engine.
Formulated to help prevent deposit buildup in diesel engines. Without cleaning, these deposits can harm performance, cause corrosion and waste fuel.
Usage FrequencyUse regularly when you fill up your tank.
Take Note!STP® Diesel Fuel Injector Treatment is specifically formulated for diesel engines.
STP® Super Concentrated High Mileage Fuel Injector Cleaner
This high mileage formula is scientifically engineered with high-performance and temperature-resistant detergents to remove deposits from the entire fuel system and clean harmful deposits in the combustion chamber in order to restore peak performance in your vehicle. It contains jet fuel, a high-quality carrier of active ingredients. Formulated for vehicles with over 75,000 miles.
Usage FrequencyUse at every oil change or 4,000 miles.
Treat Rate12 fl. oz. bottle treats up to 28 gallons of gasoline
TAKE NOTE!STP High Mileage Fuel System Cleaner is safe for any gasoline engine.
With twice the cleaning agents of our regular STP® Gas Treatment, this super-concentrated gas treatment quickly improves the quality of gas. Powerful cleaning agents fight the accumulation of harmful carbon, gum and varnish deposits in the fuel system that can reduce performance. Also engineered to remove water, which can lead to fuel line freeze. This product is made with jet fuel, a high-quality carrier of active ingredients.
Usage FrequencyUse every other tank.
Take Note!Twice as powerful as regular STP® Gas Treatment, so recommended usage is every other tank.
Like regular gas, ethanol fuels can leave deposits on intake valves and fuel injectors that further reduce fuel economy. Rust and corrosion may also form and damage fuel system components. This STP® product helps prevent rust and corrosion, and removes deposits that can reduce engine performance.
Usage FrequencyUse every oil change or 4,000 miles.
Take Note!STP® Fuel System Cleaner for Ethanol is safe for all gasoline engines.
This concentrated fuel treatment helps maintain optimum performance all year round. It works to fight rust and corrosion while removing condensation in warm weather, and helps prevent fuel line freeze.
Usage FrequencyUse regularly when you fill up your tank.
Take Note!Use STP® All Season Water Remover year round—especially during the winter and in warm, wet weather.
Scientifically engineered STP® Motor Oil helps reduce wear and tear on your vehicle’s engine.
Scientifically formulated to insulate your engine from the damaging effects of wear while helping to protect vital engine components.
Helps
Meets or exceeds the requirements of ILSAC GF-5, API SN and all previous API standards. Available in 5W-20, 5W-30 and 10W-30 grades.
Helps
Meets or exceeds the requirements of ILSAC GF-5, API SN and all previous API standards. Available in 5W-20, 5W-30 and 10W-30 grades.
By keeping your engine lubricated, STP® Oil Additives can help reduce friction, heat buildup and overall engine wear. In addition, specialized STP® Oil Additives can help stop oil leaks, reduce oil consumption and exhaust smoking.
This high-viscosity formula, complete with anti-wear agent ZDDP, is specially formulated to help fight metal-to-metal friction by providing a thicker cushion between moving engine parts.
Take Note!Use STP® Oil Treatment in addition to five quarts of oil at every oil change.
Oil burning and exhaust smoking occur when motor oil enters the combustion chamber and is burned along with fuel. This condition, known as oil blow-by, often results when friction and metal-to-metal contact have worn down parts and created gaps between the cylinder walls, piston rings, and valve guide seals. STP® Smoke Treatment is specifically designed to reduce these problems.
Over time, normal engine operation can lead to oil leaks. These occur when heat causes oil seals and gaskets to shrink, dry out, and crack. STP® Engine Stop Leak to the rescue!
Usage FrequencyUse for minor oil leaks.
Take Note!Try the complete line of STP® Oil Additive products, including Oil Treatment and Smoke Treatment.
This high-viscosity formula, complete with anti-wear agent ZDDP, is specially formulated to help fight metal-to-metal friction by providing a thicker cushion between moving engine parts.
Usage FrequencyUse every oil change.
Take Note!STP® High Mileage Oil Treatment + Stop Leak is excellent for all cars, light trucks, and SUVs. Try the complete line of STP® Oil Additive products, including Oil Treatment, Engine Stop Leak and Smoke Treatment.