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Availability:
12 left in stock
Arrives
Sunday, Jan 18
Item Package Quantity: 1
Features
- Restores fuel economy
- Stabilizes ethanol
- Maximizes horsepower
- Improves responsiveness
- For use in both gasoline and diesel engines
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.
Brand: Royal Purple
Item Form: Spray
Scent: Unscented
Specific Uses For Product: Fuel Injector
Material Feature: Unscented
Manufacturer: Royal Purple
Brand: Royal Purple
Model: 18000
Item Weight: 6 ounces
Product Dimensions: 2 x 2 x 7 inches
Item model number: 18000
Is Discontinued By Manufacturer: No
Manufacturer Part Number: 18000
OEM Part Number: 18000
Special Features: Concentrated
Lift Type: Power
Date First Available: May 8, 2015
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Sunday, Jan 18
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
I am generally very skeptical about these miracle cure in a bottle products but this royal purple atomizer worked remarkably well for me. I had noticed a decrease in fuel mileage, rough idle and an overall lack of performance in a 2.3 liter GDI engine. Also the fuel trims were off quite a bit. After one bottle and a tank of gas, the difference it truly remarkable. The idle is perfectly smooth and there is a noticeable improvement in performance. I expect fuel mileage will improve as well but too early to tell. Fuel trims are spot on. I had forgotten how wonderful this engine performs! Will this fix all problems, certainly not but it absolutely made a huge improvement to GDI fuel injectors.
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Reviewed in the United States on December 24, 2025 by G. MCBROOM
This stuff is great and it’s cheap.
Reviewed in the United States on December 17, 2025 by Tim
I recently purchased the Fuel Injection Cleaner from Amazon, and I am thrilled with the results it has delivered. As a car enthusiast who is constantly striving for optimal engine performance, I have tried various fuel system cleaners in the past, but this one takes the cake. First and foremost, the convenience of this product cannot be overstated. The packaging includes a user-friendly pour spout, making it incredibly easy to add the cleaner to your fuel tank without any mess or spills. I appreciated the clear instructions provided, ensuring a hassle-free application process. This fuel injection cleaner quickly proved its worth by targeting and effectively removing harmful deposits and carbon buildup within the fuel system. I noticed a significant improvement in engine performance, particularly in terms of smoother idling, reduced hesitation, and improved fuel efficiency. It's as if this cleaner revitalized my engine, breathing new life into it. The cleaner's powerful yet gentle formula is safe for use in all fuel-injected engines, including those with sensitive components. I had no concerns about damaging my engine or fuel system while using this product. Additionally, it is compatible with gasoline, ethanol-blended fuels, and even hybrid vehicles. The versatility of this cleaner is a major plus, as I can confidently use it in my entire fleet of vehicles. One of the standout features of this fuel injection cleaner is its ability to address various fuel-related issues. Whether you're dealing with clogged injectors, poor fuel atomization, or inefficient fuel combustion, this product tackles them all. By restoring optimal fuel flow and combustion, it helps maximize power output and improve overall engine performance. I also appreciated the long-lasting benefits of this cleaner. After just one treatment, I've noticed a sustained improvement in my vehicle's performance. This product provides ongoing protection against future deposits, ensuring that my fuel system remains clean and efficient between treatments. Lastly, the value for money that this fuel injection cleaner offers is unparalleled. The affordable price point, coupled with the noticeable results it delivers, makes it an absolute steal. Compared to expensive professional cleaning services or potential repairs caused by neglected fuel system issues, this cleaner is a wise investment that saves both time and money. In conclusion, if you're searching for an effective, versatile, and value-packed fuel injection cleaner, look no further. This Amazon purchase has undoubtedly exceeded my expectations by providing noticeable improvements in engine performance, fuel efficiency, and overall drivability. Give your vehicle the TLC it deserves and experience the benefits of a clean and optimized fuel system with this exceptional product. Don't hesitate! Add the Fuel Injection Cleaner to your cart today and enjoy the results.
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Reviewed in the United States on December 19, 2023 by Dez F.
dot work as well as i thought it would
Reviewed in the United States on October 2, 2025 by gerald bupte
A quality product . Quick Delivery.
Reviewed in the United States on December 19, 2025 by Locust Grove Mom
Works great and good prize
Reviewed in the United States on December 4, 2025 by Randy Mohan
Had a P0301 miss fire on cylinder 1, with VERY bad rough idle shakes. I was convinced that I needed to change the sparkplugs again as that solved it before. I've used plenty of other additives, but this actually made a difference!
Reviewed in the United States on December 21, 2025 by Anna Vitoroulis
3-STARS This is a review on Royal Purple 18000 Max Atomizer Fuel Injector Cleaner, 6 fl. oz. I am giving this product a 3-star review. I used two, 6 ounce bottles mixed with 34 gallons of fuel. No check engine lights came on during testing. Regen mileage interval with NO additives was 384 miles after receiving vehicle from repair shop and vehicle working properly. This product had a decrease in miles between regeneration cycle from 384 miles (baseline) to 349 miles, thus increasing DPF regen frequency. My vehicle went 35 miles less between regens with this product. This product also has a decrease in miles between regeneration cycle from previous product used, Dura Lube Diesel DPF and Catalytic Treatment. Mileage between regen cycle with Dura Lube was 360 miles. Vehicle went 11 miles less between regens with this product vs Dura Lube Diesel DPF and Catalytic Treatment. I also have a second run with ½ tank of this product which showed improvement. This product had an increase in miles between regeneration cycle from 384 miles (baseline) to 408 miles, thus decreasing DPF regen frequency. Vehicle went 24 miles more between regens with this product vs baseline. Improved on second regen cycle! This product also has an increase in miles between regeneration cycle from previous product used, Dura Lube Diesel DPF and Catalytic Treatment. Miles between regen cycle with Dura Lube was 360 miles. Vehicle went 48 miles farther between regens with this product vs Dura Lube Diesel DPF and Catalytic Treatment. MPG. Mileage increase 1.0 mpg on gradual uphill drive. Driving Notes: 21 miles driven during regeneration cycles Soot down to 3 grams EGTs = 556F temperature, normal highway driving EGTs = 698F temperature during regeneration cycle PROS MPG increased by 1.0 mpg Decreased regen frequency on second tank CONS Increased regen frequency on first tank I have included other products for comparison below. You should not compare the towing data for comparison. I have just added it to show that towing will change data. Towing will increase exhaust gas temperatures and should make the DPF more effective. My regen mileage intervals increased, decreasing regen frequency, while towing. There are many factors that affect the DPF performance. The factors that I noticed (on my vehicle) are outside temperature, humidity, vehicle speed or stop and go traffic(big factor), and EGTs. Lower temperatures decreased DPF performance. Higher humidity decreased DPF performance. Higher outside temperatures and lower humidity seem to increase DPF performance. Higher EGTs such as towing increased DPF performance. Driving downhill increased soot production faster. Longer driving distance seems helps the DPF filter as optimal temperatures are reached. It seems like soot accumulates faster when the engine and DPF filter are not warm/hot enough, and this seems to occur within the first 10-15 miles of travel. If you are only making short trips then the DPF will not perform well and regens will be more frequent. Regeneration Interval Mileage Comparison of Different Additives below: baseline (no additive), 384 miles between regeneration intervals Archoil AR6200 Fuel Treatment, 391 miles between regeneration intervals,+7 mile increase from baseline, +7 mile increase from previous additive(none, baseline) Wynn’s DPF Regenerator, 462miles between regeneration intervals, +78 mile increase from baseline, +71 mile increase from previous additive Seafoam (high dose), 504 miles between regeneration intervals, +120 mile increase from baseline, +42 mile increase from previous additive Nitrox Clean Cat Diesel, 324 miles between regeneration intervals, -60 mile decrease from baseline, -180 mile decrease from previous additive Archoil AR6500 pulling trailer in hot weather (not same comparison) , 1075 miles between regeneration intervals, +691 mile increase from baseline, +751 mile increase from previous additive Nitrox Clean Cat Diesel 2nd try, 402 miles between regeneration intervals, +18 mile increase from baseline, +78 mile increase from previous additive(Nitrox Clean Cat Diesel) Liqui Moly Diesel Purge, 265 miles between regeneration intervals, -119 mile decrease from baseline, -137 mile decrease from previous additive. Wynn’s Turbo Cleaner, 298 miles between regeneration intervals, -86 mile decrease from baseline, +33 mile increase from previous additive Rislone Hy-Per Diesel, 323 miles between regeneration intervals, -61 mile decrease from baseline, +25 mile increase from previous additive Rislone DPF Clean, 323 miles between regeneration intervals, -61 mile decrease from baseline, 0 mile difference from previous additive Archoil AR6500 pulling trailer in hot weather one way, cooler temps coming back(2nd trip, different route) (not same comparison), 680 miles between regeneration intervals, +296 mile increase from baseline, +357 mile increase from previous additive Cataclean, 414 miles between regeneration interval, +30 increase from baseline, +26 mile increase from previous additive Archoil AR6500 Diesel Treatment, 564 miles between regeneration interval, +180 mile increase from baseline, +150 mile increase from previous additive. 2nd BEST and ECONOMICAL for regens Archoil AR6400-D Diesel Fuel System Cleaner, 462 miles between regeneration interval, +78 mile increase from baseline, -102 mile decrease from previous additive Archoil AR6500. Liqui Moly Pro-Line Diesel Cleaner, 444 miles between regeneration interval, +60 mile increase from baseline, -18 mile decrease from previous additive Archoil AR6400-D Liqui Moly Diesel Particulate Filter Protector, 625 miles between regeneration interval, +241 mile increase from baseline, +181 increase from previous additive Liqui Moly Pro-Line Diesel Cleaner. The BEST for regens Liqui Moly Super Diesel Additive, 533 miles between regeneration interval, +149 mile increase from baseline, -92 mile decrease from previous additive Liqui Moly Diesel Particulate Filter Protector Dura Lube Severe Catalytic and Exhaust Treatment, 282 miles between regeneration interval, -102 mile decrease from baseline, -251 mile decrease from previous additive Liqui Moly Super Diesel Additive AC Delco Fuel System Treatment Plus-Diesel, 425 miles between regeneration interval, +41 mile increase from baseline, +143 mile increase from previous additive Dura Lube Severe Catalytic and Exhaust Treatment Dura Lube Diesel DPF and Catalytic Treatment, 360 miles between regeneration interval, -24 mile decrease from baseline, -65 mile decrease from previous additive AC Delco Fuel System Treatment Plus-Diesel Royal Purple 18000 Max Atomizer Fuel Injector Cleaner, 349 miles between regeneration interval, - 35 mile decrease from baseline, -11 mile decrease from previous additive Dura Lube Diesel DPF and Catalytic Treatment, 2nd run: 408 miles between regeneration interval, +24 mile increase from baseline, +48 mile increase from previous additive Star Review Legend 1 star: Made check engine light turn on or trigger error code(s) 2 star: Causes no check engine warnings and no engine error codes. Mileage worsened or DPF regeneration intervals decreased in mileage. DPF regeneration process worsened. 3 star: gained less than 50 miles in regen mileage interval (from baseline or previous additive), or slight increase in mpg. 4 star: gained more than 50, but less than 100 miles in regen mileage interval (from baseline or previous additive), or +2 mpg increase 5 star: gained more than 100 miles in regen mileage interval (from baseline or previous additive), or +3 mpg increase.
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Reviewed in the United States on August 25, 2025 by Sam Winston