18000 Max Atomizer Fuel Injector Cleaner, 6 fl. oz.

Great product cleaned like it said and got a little better gas mileage.

I've tried most of the commonly available products like this on the American market. The majority are snake oil and do nothing to improve gas mileage or clean the fuel system. Prior to Royal Purple, I tried Amsoil PI which is more expensive but did work exceptionally well. I later learned from a master mechanic that unless these types of products have an additive package containing PEA, they likely won't do much which explains the lackluster results from the other products, and also why the Amsoil PI did work so well. In comes Royal Purple to my door and I have to say it does work at LEAST as well as the Amsoil, at a slightly lower price and easier to find. Royal Purple does contain the additive package and you can really tell the difference after running it a full tank. My 2016 NIssan Maxima now has more pep from a dead stop, is getting a few MPG better mileage and to my surprise it quieted a bit of engine noise. I can really feel the performance boost. This will be a go-to product for me after each oil change.

It does have the right cleaning chemicals in it. My car runs good with decent gas milage. Note I do use 89 octane no-ethanol gas 1 out every 5 tank full and usually use "Top Tier" type gas available at better gas stations.

dot work as well as i thought it would

This stuff actually works like a dream, I wasn't having any real issues ( I Thought ) but after 45,000 miles, I felt it might do something for cleaning the fuel system, after using it exactly like it said to do, my suv is so smooth you won't even know it's running at idle, and it's much faster taking off, not sure on mileage because of the severe cold weather here in Michigan but i'm so pleased i will be buying if for family members, don't be afraid this stuff works.

This stuff is great and it’s cheap.

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.

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.

I dumped it in my tank at the highest recommended concentration. After 400km it almost totally cleared up the rough idle which I suspect was clogged injectors. I'm reordering, and intend to use a bottle every tank from now on. (1998 Silverado 5.0L 577,000km)

Este producto es muy bueno cumple con todas las espectativas exelente para motores gdi o inyección directa. Muy recomendable para aumentar los km x litro

Works wonders better Acceleration topping sound is gone.

Super product

I love this product and it came in a good packaging, really noticed a difference in my driving!!!