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

I own a 2021 Toyota Sienna Hybrid, which it is supposed to give me an impressive gas/mileage performance (mind the driving habits). One day, I noticed that when I filled my tank in the cheapest station in the area, and with regular 87 Octane gas, the gas mileage was extremely mediocre for a van that is supposed to shine on that aspect. I did some research and found out that better gasoline with higher octane will help improve this dramatically. So now I always use premium gas 93 or over, and one of these bottles between fills. The gas mileage is what it should be in my car, so the extra money I'm spending to fill up the tank, gives me extra mileage and it compensates, not to mention that supposedly it keeps the engine components cleaner.

The Ruslone Octane booster is the cats meow. Its more cost effective than auto parts store boosters, actually raises the octane 2 full points (ex. 87 to 89), and is well worth it. Go to their site and itll explaine more and with next level detail. And yes, I read it. I drive a HEMI powered vehicle. The manual recommends 89. 87 octane is $.40/gal or more cheaper. At the time of writing this octane booster is 2.56. I put 20 gal in at a time of 87 octane for an average price of $90. At 89, my wallet is hit for over $100. The additional cost of the booster still keeps me under $100 per tank... for now. What is the performance value? My truck runs a bit smoother and has a 1.5 mpg increase in economy per gallon. Getting 15.4 over 13.9 mog adds to the overall value of this product. I will continue using the octane booster. Thank you Rislone for making a product worth my time.

Gasoline is expensive and so are octane boosters! For the price point, this is a good value. This product treats 20 gallons with a octane increase of 2 points. I use this in a 5.7L Hemi with 282,000 miles on it. Give it some time. I sense it works well. Quick start ups,acceleration, smooth idle. Gas mileage increase, not so much.

I have a 91' that supposedly can use regular fuel. Was out in the boonies and really needed gas but didn't have what I preferred. I recall the manual didn't say I needed premium so I got what they had. Good thing I have some paranoia about stuff and had a bottle of this in the glove for emergencies. The next start the car ran rough and struggled to idle. Poured this in and cranked it. It took some throttle to get it sputtering but once the crap gas passed thru the line, the idle evened out. I figured booster ups the rating a couple numbers or maybe 3 (87 = 89 or 90) so it was close enough to stop the hiccups. This stuff worked. I ordered more so I have a spare in the glove again and one in my garage.

Has MMT in it, which is a known proven octane booster. These were only 2.56 a bottle for a long time but now the price everywhere has shot up. If you search the web you can get them in huge quantity down to about 4 bucks a bottle after shipping, 2.99/bottle plus shipping, but that is ordering a bunch, like 20+ to get the shipping per bottle more reasonable. Too bad, as this stuff actually does what it says and was an awesome value when it was 2.56 a bottle Prime, keep your eye out for the price to drop and it could be well worth it, especially for those in areas where you can only get 91 and want 93 octane to max the performance of your car that recommends 93 for highest performance. It's also good for tuning where you can get a 93 octane tune or manually turn up the boost on your turbocharged car.