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

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.

This stuff is great and it’s cheap.

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.

It was easy to use, and didn't cause any harm. I noticed a little bit of a performance increase, but nothing major since my engine is already pretty clean & only has 64,xxx miles on it. I recommend Lucas Fuel Injector cleaner and Upper Cylinder Lube. The bigger bottle with the fuel stabilizer in it. I've noticed a major increase over 5 tanks of fuel using it at the recommended usage amounts. Engine is smoother revving and mpg's went up by 2-4. Best thing for fuel economy is fresh oil & a fresh oil & fuel filter. And making sure your Evaporative Emissions System is working properly. This product does work, but it doesn't work as well as Lucas. Get new spark plugs as well, if the old ones are fouled or are just super old/have more than 20,000-50,000 miles on them depending on type. (Copper vs Platinum vs Iridium) follow the manufacturer specified replacement guidelines for your plugs, fuel filter, oil & oil filter, & make sure your Air Filter is clean. Plus cleaning or replacing your Mass Airflow Sensor, and cleaning your Throttle Body is important. These are all super easy things to do. Sometimes replacing the Spark Plugs is tricky, like on my car they're hidden under my air intake and several highly important things need to be removed to change the back 3. But that's my car. Yours might be easy. If you're not 100% confident in doing the repair yourself, even after learning how, then pay a qualified reputable mechanic to do it for you. Engines are touchy sometimes, and killing a car can be all too easy. Or getting electrocuted by not doing something simple like disconnecting the battery before doing electrical work. Just pay someone if you're hesitant to do it yourself. Take care, & good luck!

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.

A quality product . Quick Delivery.

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!!!