Rislone Hy-per Fuel Injector Cleaner — the best all-around fuel additive to use with every tank of gas. From the outset, we engineered it to be far better than your average fuel additive. And we succeeded.
This complete fuel injector tune-up helps eliminate noisy injectors and fuel pumps, rough idle, hard starting and hesitation. Its high-performance additives increase power, performance, acceleration response and fuel efficiency. Perfect for use with all gasoline, ULSD diesel and E85 Flex-Fuel engines, as well as all unleaded, oxygenated, reformulated and biofuels.
Part Number: 4701
Dosage: Pour entire bottle into fuel tank. One bottle is concentrated to treat up to 20 gallons of gasoline or diesel fuel.
Size: 6 FL. OZ. (177 mL)
With continued use, it reduces carbon build-up which causes pre-ignition, power loss, burned valves and broken rings. It also cleans injectors to reduce loss of fuel economy, hesitation, pinging (spark knock), and helps restore performance.
This product contains a unique blend of additives that clean & lubricate the entire fuel system, including the fuel pump, tank, lines, injectors, and even carburetors on older vehicles.
The UCL (Upper Cylinder Lubricant) Top Lube additive lubricates the fuel pump, injectors and upper cylinder to reduce friction & wear, reducing noise.
This varies depending on the age of the vehicle, the quality of the fuel used, and how dirty the system is. It is normal for larger increases in MPG on the first dosage and then it will usually taper off and flatten out from the second dosage on. For best results use with every other fill-up.
Yes, Rislone Fuel Injector Cleaner is designed to work with all diesel engines including ULSD Ultra Low Sulfur Diesel and Bio Diesel Fuel.
No, this will not harm your engine or any emissions components including catalytic converters, oxygen sensors, DPF filters, or the EGR valve.
P/N 4701 / 6 ounce bottle – Pour entire bottle into fuel tank. One bottle is concentrated to treat up to 20 gallons of gasoline or diesel fuel. For smaller engines use ¼ bottle for every 5 gallons. Larger vehicles use 1 bottle per 18 gallons of fuel capacity, or 1 ounce per 3 gallons. NOTE: For vehicles with known fuel lubrication problems, double the dosage.
Yes, Rislone Fuel Injector Cleaner works with the E-85 and will lubricate the fuel system reducing the negative effects that ethanol has on the system.
Yes, this bottle has special neck threads which allow this product to be safely and easily poured into all fuel tanks, including capless (no fuel cap) systems
Yes, this is safe to use and works in all domestic and import turbo charged and directed injected gasoline (GDI) and diesel engines like the Ford EcoBoost (gas) PowerStroke (diesel) and GM Ecotec (gas) Duramax (diesel), Dodge Cummins Ram (diesel) and all others.
Capless fuel systems go under a few names like Ford’s Easy Fuel System, but basically it is a vehicle with no regular gas cap. Capless systems are on many vehicles including Ford, Chrysler, Dodge, GM, Cadillac and more. The reason the car companies are moving to this system is to prevent fuel evaporation and emissions issues if the gas cap is left loose, not installed or is lost. Rislone is one of the fuel additives that will easily work with all capless, obstructed and regular fuel systems in cars and light trucks.
Yes, Rislone Fuel Injector Cleaner with UCL is an excellent lubricant and will replace the lost additives in the new reformulated diesel fuel.
Yes, this multi-vehicle formula works with all fuel injected, port fuel injection (PFI), direct injected (DI / DIG), gasoline turbo direct injected (GTDI), turbocharged and carbureted engines.
Rislone® Hy-per Fuel™ Super Concentrated Fuel Injector Cleaner is the best all-around fuel additive to use with every other fill-up. This complete fuel system tune-up helps eliminate noisy injectors & fuel pumps, rough idle, hard starting and hesitation. High performance additives increase power, performance, mileage and help save fuel by cleaning & lubricating fuel injectors. Regular use, summer and winter, maintains optimum engine efficiency and power. Use in gas, ethanol and diesel cars, SUV’s, trucks, RV’s, fuel injected, carbureted, turbo, GTDI and direct injected engines. Works with all types of fuel including regular & unleaded gasoline, ULSD Ultra Low Sulfur Diesel, E10 E15 E85 Ethanol and other reformulated and bio-fuel formulas.
UCL – Upper Cylinder Lubricant Top Lube
The Rislone UCL additive is specially designed to lubricate the upper cylinder of an engine; however this action starts in the fuel tank. This UCL formulation helps overcome the lack of lubrication in modern fuels including unleaded gasoline, ULSD diesel fuel, E85 Ethanol, and other oxygenated and bio fuels. In the fuel tank, UCL helps prevent rust & corrosion and this process continues into the fuel lines. UCL also lubricates and protects the fuel pump, giving it a longer life and quieter operation. The next step for the UCL formula is to lubricate the injectors allowing them to work more efficiently. Not only are cylinder deposits cleaned, including gum and varnish, but as the UCL treats the upper cylinder the lubricating film helps to prevent carbon from sticking so that it can be burned. This film completely lubricates the upper piston, rings, guides, valves, and seats.
Directions / Dosage:
Gently tip bottle and completely insert neck into fuel tank opening, allowing entire contents to empty into tank. Twist and gently pull to remove.
One bottle is concentrated to treat up to 20 gallons of gasoline or diesel fuel. For larger vehicles use 1 bottle per 18 gallons of fuel capacity, or 1 ounce per 3 gallons. Small engines, use 1/4 bottle for every 5 gallons.
In vehicles with known fuel lubrication problems, double the dosage.
Results will either be immediate or noticeable within a few days of driving.
Rislone products are available where auto parts are sold.
Read More
Read More
Don’t just take our word for it. Our customers have been using our products for decades.
If you have a story to tell, let us know.
“Flat out the best fuel injector cleaner I’ve ever tried. Use in my ’11 F150 and older ’87 Mustang 5.0 fox body. I wasn’t familiar with Rislone until it was recommended to me, and it’s awesome. Thanks for a great product that works as advertised.”
Adam C. – Madison, WI
“I found that I got better mileage with lower grade fuel while using this product.”
G. Smith – Upstate New York
“Great product, I like it. Rislone is all I buy.”
Mike D. – Manhattan, IL
“I have used and compared to many many competitors. Absolutely amazing! Quick working, very noticeable improvements, crisp precise firing that eliminates much vibration. Some competitors gouge you for price and do not work as well. This is a gift in price for what it will do for your engine.
With our shitty gasoline today (10% alcohol weakening the power of detonation and its corrosive action) the protection of the upper cylinder lubricant is critically important to safegaurd the mechanical efficiency of delivery. Without it, effectively the correct computer demands are “ignored” and you will get inappropriate low performance. This concentrate is the very best deal i know of for basic, necessary, continuous, timely preventative maintenance and is required in every tank of gas for constant top performance, gas mileage, vibration elimination, proper firing and power.
All things considered your rings may well be first to go and this product will cut the friction and eliminate unnecessary heat and wear. Another inferior product claims a 67% increase in ring life….if true this product should do a much BETTER job! If you need to keep your car “forever” you definitely need this product. First time I tried this product I was shocked how well it worked right out of the gate! Unbelievably “GREAT stuff” at any price!”
William E. (Mechanic, Machinist, US Veteran) – Drexel Hill, PA
