9 best royal purple fuel system cleaners

Product description

Max-Clean is a state-of-the-art fuel system treatment that cleans injectors, restores fuel economy and reduces both engine buildup and tailpipe emissions. Max-Clean’s proprietary technology targets both the intake system and combustion chamber and is effective on the entire spectrum of engines on the road, whether they are new or old, gasoline or diesel, naturally aspirated, turbocharged or supercharged. After multiple product fleet tests were conducted on various makes and models of vehicles, Royal Purple found that after, as little as one Max-Clean treatment can improve fuel economy an average of 3.2 percent and increase horsepower an average of 2.6 percent. Reduces Hydrocarbon, NOx and CO emissions (on average 12, 13 and 18-percent respectively). Prevents rough idle, hesitation and stalling. Prevents premature spark plug fouling. Reduces deposit-related engine knocking and pinging. Deposit build-up is a natural consequence of fuel combustion, unfortunately these deposits can have a significant effect on the performance and reliability of your engine. With Max-Clean, Royal Purple has developed a product that in most cases can bring engine surfaces back to like-new clean, restoring once-lost fuel economy and performance.

• 3-in-1 fuel additive keeps new engines clean and improves vehicle's performance
• Improves fuel economy an average of 3.2 percent
• Increases horsepower an average of 2.6 percent
• Reduces hydrocarbon, NOx and CO emissions (on average 12, 13 and 18-percent respectively)
• Fit type: Vehicle Specific

User questions & answers

Question:	How to use this ? Can I just put this to the fuel tank
Answer:	Dump it in the fuel tank and fill it up with gas. This large can will treat up to 20 Gallons. I use it in my motorcycle, so I just put a small amount in. It also has a fuel stabilizer in it which is good cause I don't ride the bike that often.
Question:	Does this work in small gas engines
Answer:	What do u mean by small gas engines? Im running a 1500cc engine and works well with it. Is this small enough?
Question:	my tank holds 33 gallons, would i have to fill it up only will 20 gallons after i pour in Max Clean or could i fill right up
Answer:	If you have problems with injectors I would use two cans. I would suggest if that does not work get the injectors clean. Check out Scotty Kilmer on you tube or on google he has a professional way to clean injectors. Honda has the most problems after about 130,000 miles and should be clean. I know because I own several.
Question:	Will this work for my engine if I have a pet goat
Answer:	Only if you have one of those "fainting" goats. All other goats do not make good pets.

Product features

Royal Purple Max-Clean Fuel System Cleaner and Stabilizer

Royal Purple’s Max-Clean is a state-of-the-art synthetic fuel system cleaner that deeply penetrates and cleans injectors, carburetors, intake valves and combustion chambers to restore fuel economy and reduce emissions.

NAPA Know How writers recently cited twice-annual use of Max-Clean in gas tanks as one of the “10 Overlooked Services that can Extend the Life of Your Vehicle.”

Highly versatile, Max-Clean is EPA / CARB compliant and safe for use in gasoline and diesel engines including all ethanol blends or biofuel. Max-Clean is great for use in in both 4-cycle and 2-cycle engines, and will not harm specialized emissions equipment.

Fuel system cleaner is worth it. Multiple product fleet tests were conducted on various makes and models of vehicles. Royal Purple found that after as little as one treatment, Max-Clean can provide significant advantages in engine performance and fuel economy.

Performance Advantages

Improve fuel economy an average of 3.2 percent and horsepower an average of 2.6 percent. Reduce hydrocarbon, nitrogen oxide (NOx) and carbon monoxide (CO) emissions (on average 12, 13 and 18 percent respectively). Prevent rough idle, hesitation, stalling and premature spark plug fouling. Inhibit corrosion and oxidation.

Additionally, Max-Cleans helps to reduce deposit-related engine knocking and pinging. It also stabilizes fuel during off-season and storage.

Recommended Treat Rate and Usage

10,000 mile interval - 20 oz. can.

Pour entire contents of 20 oz. can into a nearly empty tank and refuel. One can treats up to 20 gallons. For tank sizes outside of this range, use one ounce per gallon. In 2-cycle engines, use one ounce per two gallons.

Product description

Royal Purple 11722-2PK Max-Clean Fuel System Cleaner and Stabilizer - 20 oz. ...

• Royal Purple

User questions & answers

Question:	Does it clean catilic converter
Answer:	Nothing "cleans" a catalytic converter. The last thing you want is oil in it.

Product description

Royal Purple’s Max-Atomizer is a fully-synthetic, highly concentrated, high performance fuel injector cleaner. It is specially formulated to solve problems with today’s direct injection engines, but can be used with any type of fuel injection. Max-Atomizer contains highly concentrated polyether amine (PEA) detergents that quickly clean clogged and coked injectors, restoring 100% of injector flow. This optimizes injector spray patterns and better atomizes fuel as it enters the combustion chamber. The result is improved fuel economy, enhanced power and performance, reduced emissions, smoother idle, and quicker / easier starts. Max-Atomizer is the only fuel injector cleaner that also stabilizes ethanol, which chemically breaks down to cause harmful effects to an engine.

• Restores fuel economy
• Stabilizes ethanol
• Maximizes horsepower
• Improves responsiveness
• For use in both gasoline and diesel engines
• Fit type: Universal Fit

User questions & answers

Question:	How do i use this product? do i just pour it into the gas tank when i'm going to fill my car up
Answer:	Yes, just pour it in according to the directions and by the time you nearly empty the tank, you should notice a difference. I found even better results when I changed my oil and filter to Royal Purple Synthetic oil. Use the same viscosity as your vehicle manual says to use. Between the two, I have less heat, smoother running and better fuel economy.
Question:	How does this differ from MaxClean
Answer:	More like a direct/specific fuel injector cleaner.
Question:	how does this compare to sea foam cleaner
Answer:	Ive never used sea foam cleaner
Question:	Hi! Which is the diference between this and the other "maxclean" from royal purple? Thanks btw
Answer:	Good question. We bought both and it seems that they truely do the same thing. Both very effective making cat coverter and fuel injector cleaner. I can tell and see the difference. Royal Purple is top of its game 5☆.

Product description

3-in-1 fuel additive keeps new engines clean and improves vehicle's performance;Improves fuel economy an average of 3.2 percent;Increases horsepower an average of 2.6 percent;Reduces hydrocarbon, NOx and CO emissions (on average 12, 13 and 18-percent respectively);Prevents rough idle, hesitation and stalling

• Royal Purple 11723-6PK Max-Clean Fuel System Cleaner and Stabilizer - 20 oz. (Case of 6)
• 20 Ounce (Case of 6)
• Reduce deposit-related engine knocking and pinging

Product description

Royal Purple’s Max-Clean is a state-of-the-art synthetic fuel system cleaner that deeply penetrates and cleans injectors, carburetors, intake valves and combustion chambers to restore fuel economy and reduce emissions.

• Prevent rough idle, hesitation, and stalling
• Prevent premature spark plug fouling
• Reduce deposit-related engine knocking and pinging
• Superior corrosion and oxidation inhibitor

User questions & answers

Question:	How does this compare w/Stabil
Answer:	In my opinion Royal Purple Max Clean is hands down the best fuel system products one can buy...but that is just one mans opinion?! It works very well for me?!

Product description

Fuel System Cleaner; MAX-CLEAN (R); Cleans Injectors/ Carburetors/ Intake Valves/ Combustion Chambers; 20 Ounce Bottles;

• 10 PACK
• Fuel System Additives
• ROYAL PURPLE

• Purple Ice provides 2-in-1 corrosion inhibitor and wetting agent enhanced protection of aluminum
• Reduces surface tension of coolant allowing heat to transfer outside the radiator for more horsepower
• Maintains a cleaner system, prevents overheating and extends the life of the water pump
• Max-Clean improves fuel economy an average of 3.2 percent
• Reduces hydrocarbon, NOx and CO emissions (on average 12, 13 and 18-percent respectively)
• 3-in-1 fuel additive keeps new engines clean and improves vehicle's performance

Product description

Royal Purple Max-Boost - 16 fl oz Can is a high-performance octane booster with fuel treatment that increases gasoline octane, reduces emissions, and enhances engine performance while stabilizing fuel. Max-Boost is formulated with MMT, which delivers the best octane enhancement to help eliminate engine-damaging detonation, pre-ignition, and pinging or knocking from low octane gasoline. Max-Boost is formulated for engines equipped with carburetors, port fuel injection and direct injection, as well as turbocharged, supercharged and nitrous-injected engines. Safe for use in leaded and unleaded gasoline's, and alternate fuels like gasohol, reformulated gasoline, and all ethanol blends. Max-Boost is safe for oxygen sensors and catalytic converters. Performance engine oils contain higher levels of phosphorus as an anti-wear additive, which can accumulate in catalytic converters and reduce their effectiveness. Max-Boost protects against phosphorus poisoning of catalytic converters.

• Replaces lead additives for protection of non-hardened valve seats
• Raises octane rating up to 30 points or 3 numbers
• Restores power and fuel economy while cleaning deposits from fuel injectors
• Reduces power loss due to knock-retard in computer-controlled vehicles
• Reduces engine knocking/pinging and stabilizes fuel
• Max-Boost is a racing formula and is not street legal.

User questions & answers

Question:	How well does this clean Oil Control rings? Im trying to try everything without taking engine apart
Answer:	It's an octane booster, not a cleaner, you probably need a different product
Question:	Can you use this with 2 stroke engines
Answer:	I would stay away from it. It will foul your plugs pretty quickly and it doesn't really have any added benefit if you ask me.
Question:	Item title says 6pack? Or just misleading
Answer:	Not a six-pack
Question:	am I going to go to jail for using this product? it says street illegal
Answer:	The real answer is yes, you get a fine and you might loose your car… if and only if you add it to your car's tank and while driving it you encounter a police road block, similar to alcohol checking, taking samples of the gas in your tank. LOL, ok science fiction. Reality says that if you are street racing and crash into an innocent driver… if they could find this additive in your gas tank it would add up to another fine, which of course is nonsensical at that given point too lol Yeah, it's marketing… I just had to do the mental process, it was fun lol