Rislone Hy-per Fuel Complete Fuel System Cleaner Gas (Pack of 4)

this gives you excellent acceleration on the highway. keep your fuel system clean. use a few times a year.

I could tell a big difference after I used Rislone on my 15 yr old car. It ran alot smoother. EXCELLANT PRODUCT. I think it worked better than Seafome.

This product did clean the fuel well.

I purchased this product a couple of times now and I'm really pleased with its quality that it brings to my gas mileage and the smoother my engine sounds. I've used other treatments that were lower in cost which are considered good however this product is a bit pricey to be purchasing too often regardless of its performance which is great. I would prefer this product overall when it comes to performance, functionality, as well as speed just can't really see purchasing too much. I do still have leaks but products can only do so much depending the problem

It gives a noticeable improvement on performance

My car is a 2012 honda civic with nearly 300,000 miles. It started having problems starting and when I took it into the shop they told me the alternator was bad and replaced it, but a few weeks later it started having the exact same issues. I do trust my mechanic so I think the alternator was part of the problem, but I was panicking that I was looking at another massive repair bill. My research suggested the fuel injectors could be the problem. I tried a different brand of fuel injector cleaner and it sort of improved for about a week but as soon as i did my next fill-up the car started having big problems shortly after. I bought this one to try instead. So far it's been about 3 weeks and my car has been starting up perfectly. It improved things from day one after driving about 45 miles the next time I started it it started fine. I really hope this will have permanently solved the problem and I will definitely be using it every 3000-5000 miles to hopefully keep things from getting clogged again. I'll try to remember to update my review in a few weeks or months to let people know if it's still working, but at the moment I am thrilled with this purchase.

This is one of the few additives I've used that actually works. I could feel a difference in both cars Sienna and CX-9

It does work for a temporary fix. Price wise is very inexpensive against other brand products that are 30 to 40 dollars or even 50 dollars that guarantee passing emission results. If you use this product for every 5 -10 full fuel tank period or more, I can say you can extend your catalytic converter life, a system with a smooth riding & less noise under the hood. If it is every 2 fuel fill up, you will need a new catalytic converter. I have used it on my vehicles the last year and mileage increase has been noted.

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Didn't do much. would not recommend.

Haven't seen any difference

Heard about it and tried it, was good no complaints.