5.0 out of 5 stars Price

A. · March 25, 2025

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5.0 out of 5 stars I use the product

m.i. · March 17, 2025

Great product

5.0 out of 5 stars GREAT PRICE

G.D.R.J. · February 24, 2025

THIS IS A MUST IF YOU HAVE A LOT OF MILES ESPECIALLY IN CA.

4.0 out of 5 stars Easy to use

P. · August 4, 2023

I don't know if it really works. I used it to clean my fuel injection system on my car.

5.0 out of 5 stars Affordable preventative maintenance

J.W. · January 29, 2025

Used this in all of my vehicles will buy more and probably add it to my maintenance program

5.0 out of 5 stars WOW highly recommend

B.E. · June 22, 2024

My 2006 Pontiac G6 with 180000 was not idling very well and started poorly. I added this product along with replacing my sparkplugs (which only had 30000 on them) and it did not take long for me to notice that the poor idling and poor starting issues went away. I went from 25.8 mpg to 27.3 mpg and get this, most of my driving is of the short trip into town variety. I mean WOW what a difference. I'll take it and highly recommend using this product.

5.0 out of 5 stars Rejuvenated my 7.3 Diesel

S.T.W.T. · October 17, 2023

I have a 2002 Ford F250 with a 7.3L diesel. Truck has 140,000 miles on it. I noticed that my mileage was starting to get worse and I had a tapping sound coming from an injector. A friend of mine suggested this product.I added two bottles to a full tank of fuel and ran it. Like night and day difference.Smoother throttle response, more power, better driveability, and the injector tapping sound is gone. I can't believe how well this worked. Am sure my mileage is up as the truck is driving so much better.Went ahead and put this product on subscribe and save and will use this as regular maintenance on both my 7.3 and my 6.7.Worth every penny.

5.0 out of 5 stars Royal purple is the best kept secret of the ones who know

s. · June 25, 2022

I run this every year on 2003 Dodge Durango RT . The truck has had issues from all systems for the last three years so I haven’t been able to take accurate tests and run the numbers while repairs were taking place . Last years numbers were hard to believe In June so I decided to wait till this year to be sure I spoke correctly. The numbers after running this last year while she was rebounding from major repairs weren’t wrong. I gained 40 miles on my cleaning tank . 10% gains and motor has never been smoother. All and all I got the can for free and saved 24 dollars on this fill up all the while cleaning my motor and fuel system pump to injector & out the cat . The product literally pays for itself and buys you gas in the process . The numbers royal purple posts are far below what it does for a badly dirty top half . Do yourself a favor and buy a can

Best in the market

A. · May 15, 2024

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Top Five Fuel System Cleaner

J.Y. · May 27, 2020

Item received in good order except for a slight dent near the cap. First time trying out this product after watching the good review from YouTube.

No espere milagros, pero sí un producto premium para cuidar su auto.

P.1. · May 5, 2025

Lo apliqué a un Corolla SE 2017 y un Onix 1.2l turbo 2021.En ambos fue notable que en principio gastaron mucha más gasolina de la normal. Pero acabado este tanque de combustible, el consumo posterior aumentó y se estabilizó mucho más.Es un buen aditivo tanto para autos con un sistema de combustible limpio y que busca mantenerse así, como para autos con un sistema de combustible sucio. Sólo en este segundo caso, es más percibible que aumenta la capacidad de aceleración del auto, como fue el caso del Corolla.Entonces, el costo de este aditivo, para su uso, requiere también de considerar tanto el primer combustible (que te gastará hasta un 20% más. Esperemos que dure las 10mil millas o el año que promete. Hasta ahora me ha ayudado a mentener el onix en un consumo de 15-17km por litro promediado en carretera y tráfico.