Rislone 4747-12PK Super Concentrated Octane Booster, 6. Fluid_Ounces, 12 Pack, yellow

I use this religiously in all my harleys to offset lower quality pump gas. Bottle size is perfect fit for my swingarm bag. Usually get 3 to 4 fill ups from a single bottle. Won't ride without it.

I decided to purchase for my 2025 Ford Ranger Raptor to determine if I could tell a difference in horse power performance, even though I added a performance calibration computer program along with a Process West enlarged air box, to include the 3.5" cross over pipes to allow the turbos to really breath. My comments of the product are not based on anyrecent Dyno testing. I added one bottle to each of the 5-full tanks of gasoline of Sunoco 94 octane fuel. I did this to give the computer to evaluate and "learn" the fuel mixture change. On the 5th full tank full, I added one bottle and hit the road and accelerator. Truly I was shocked that the product made a noticeable change I could feel from behind the wheel. Both from a full throttle start, highway throtle punch and residential road driving acceleration. Again, not a dyno test but if I can edge out a noticeable difference, that's all I was l99king for. Without any details, I must have surprised drivers in their modified vehicles in the performance of this mid-size pick-up when I pulled away in small level straight and drag racing situations that arose. Additional performance parts will be added in the very near future but at least the gasoline octane booster proved its point to me.

they work

My car needs high test gasoline which is usually $1 more per gallon. These allow me to use regular and save $10-15 per fill up.

This really works. I absolutely love this stuff, because I get an extra 2 to 3 mpg per tank using it. Unfortunately, as the price continues creeping up and up, the sellers, or the manufacturer, or someone out there needs to realize it's becoming more and more likely that I'm going to reach for the "Super" pump. When the cost starts to negate the benefit, I'll stop using this, and start using the 93 pump instead. Luckily, the last I ordered, it was still under $40 for a 12 pack. That was less than 2 months ago. Now it's almost $50. I can't recommend it as highly as I once did because of the price increase.