Rislone Hy-per Fuel Octane Booster,6 fl. oz, 1 Pack,4747

Great price

I've used the Rislone Hy-per Fuel Octane Booster a few times now, and it has made a noticeable difference in my car's performance. It's easy to use and has helped improve fuel efficiency. Highly recommend for anyone looking to boost their fuel octane rating.

The milage def went up in my new turbo vehicle. The stuff works great turns 20 gal reg into what ran in my vehicle (2022 hyundia santa cruz 2.5t) better then prem. But it was 2.88 a bottle. I ordered 3 sets of 4 packs at the same price. Go to order another n its 7.10$ a bottle w t heck happened. Def not worth 3 times the price. Or not willing to pay when I know it was just 2.88 each. So 11$ for 4 went to 29$ no thanks. Great product once price drops again

I use it in my Audi R8 on trips, I cant feel a hug e butt power increase but it does love it, idles better, ( yes ive done carbon cleaning) it burbles and all like a happy kid again where before it just growled... it run out great been using it for like 6 months no off and on when road tripping, engine has 13.1 compression - flat plane - hot rodded v8 revs to 9k, ported / polished intake, all titanium valve train etc, great little boost for it time to time, no probs with sensors or stuff. no dash lights, Id say give a few, not just one a try. then decide. for me its a win, so I keep 4/5 on hand all the time.

I used this on a 2021 Lexus, I recently purchased. The car had low miles when I got it, but I wasn't sure how long it sat on the lot not being driven. I was only getting approx 300 miles/tank and after putting a full bottle in the tank on two consecutive fillups, I am now getting 375-400 miles/tank(highway miles). I highly recommend this for anyone wanting to increase miles/gallon. I will start doing this once or twice a month moving forward. Unless you have other issues with your car, there is no reason EVERYONE shouldn't be using this!