Product Reviewed: Gasoline Fuel Additives
Current Rating: 4.76 out of 5 stars
Votes & Reviews: 46 vote(s) and 71 user reviews.
Reviewed by Jim: 
Saves me money on fill ups
Reviewed by Anthony:
In my Harley davidson
Reviewed by Tino:
As the title says take it for what is worth. I purchased this for a friend who has a few Harleys. We were talking one day about how the HD brand of octane booster does a good job and he could feel a power increase in his older bike. So we got some of this ordered up. He went on a long trip and was amazed on what it did. Whenever he uses AMSOIL octane booster he gets on average 40-50 miles more per tank by using this. He was a little skeptical the first time and after a few more times, he told me how well it works and with cheap gas. The first order was a couple of bottles and then more and now by the case lol! He especially likes to keep this product on hand for those long trips. He Rates this at 5 stars. Thanks.
Reviewed by Bruce:
On several occasions I have had to refuel with lower octane gasoline and then ride through mountains. The pinging was especially bad and my bike basically lost acceleration. One of my friends suggested your octane boost. I tried and performance back where it should be if not better. I actually believe it is better. Now, I always travel with a bottle on my bike. Great product.
Reviewed by Robert:
Motorcycle octane booster works very well in my Harley
Reviewed by STEPHEN:
Awesome
Reviewed by Mike:
Use in my BMW motorcycle to get extra power.
Reviewed by Chris:
This octane boost is fantastic. My 2013 Road Glide Ultra runs so much smoother, quieter, and more powerfully that it seems to be an entirely different motorcycle. With 91 octane being the highest available in my area, this octane boost has proven to be a wonderful solution to the ping pang ting tang that had made my rides less enjoyable. Thanks Amsoil!
Reviewed by Allan:
Not just those times when you feel the engine sputtering from bad fuel, but also when going on long trips & knowing there may not be Premium available.
Reviewed by Dan:
Put the stuff in my tank, and it woke the bike up. Runs like a million bucks.
Reviewed by Victoria:
Use mostly when I stop for gas at unknown stations. It works!!
Reviewed by Jason:
Noticeable difference. Helps performance.
Reviewed by Harlan:
I only run ethanol free gas in my Harley, problem is though that the only ethanol free gas that I have acess to only comes in 87 octane. Buy using this product, I know that I'm getting enough octane to prevent pre-detonation.
Reviewed by Wolf:
All your products i've been using Amsoil for going on 17 years and my motorcycle and always shifts good and always runs good I never have any problems it runs cooler a number one product as far as I'm concerned
Reviewed by Mcgyver:
Really helped stop engine ping during low rpm acceleration.
Reviewed by
Mreds:
I used it in my motorcycle and was delighted with the extra performance.
Reviewed by Tom P.:
I tour extensively throughout North America on a Harley-Davidson CVO Ultra Classic. The 110 cu. in. engine has been modified to improve its performance, primarily to increase mid range torque, essential for the fully loaded / two up riding that's my norm. My route preference is always far off the beaten path, as far from the interstates as possible. Quite often, I wont find the premium gas that my bike needs or the octane of the purchased fuel is questionable. AMSOIL Motorcycle Octane Boost solves the problem. Simple, pour one into tank, motor is happy again, we ride on!. I don't leave home without it, beats all the others out there!
Reviewed by John:
I bought a bottle of this and used it in my BMW motorcycle recently this year. Honestly you really can't say much using only one bottle so I don't know what to say. Unless you had some kind of testing equipment and did an actual test on whatever you were using it in I don't know if you would notice much. It's kinda like taking supplements unless you do it for awhile and then quit you may notice the difference but it is very subtle.
Reviewed by Ragman:
I use this product on my motorcycle and pick up and like this product better than anything else
Reviewed by Sparky:
Used several bottles of this product and noticed no difference in how the bike ran.
Reviewed by Bullet:
Awesome stuff. Could tell a difference.
Reviewed by Kdemac:
Excellent product. Harley Davidson"s best friend.
Reviewed by Brian:
This stuff really helps stop detonation and knock especially on hot summer days. Ihave also been out in the middle of nowhere when I couldn't fine 91 or 93 octane gas, so this is good reassurance your motor stays healthy..
Reviewed by Jemzor:
Whenever I can, I try to find gas stations that sell Ethanol Free gas. I prefer that for these high compression ration engines (and it's also recommended in the bike manual). If I can't find it, this Octane Boost does a great job as a stand-in. I try to keep a bottle or two in my saddlebag just to cover those occasions.
Reviewed by WDP:
Amsoil is definately a god product..
Reviewed by Wheelchair Pete:
Been using this in my carbureted HD w/sidecar, and it eliminates any knocking that was previously happening on 93 octane pump gas.
Been using 5 years it in my VW powered trike that runs on 87 or 93 whatever I choose, & it runs clean with no side effects of straight pump gases.
Reviewed by Joe:
Love this product in my Harley!! Run aftermarket parts with a Dyno tune and my buck love the additive
Reviewed by Willie:
I live in Las Vegas and work in California and their fuel there sucks. Tons of watered down fuel from all companies. I use the octane boost while I'm there and it extends my mileage. I ride a Goldwing and I'd get terrible fuel mileage, but 1 bottle of boost and I'd get about 25 more miles to the tank.
Reviewed by David:
I've used this product mainly just to see if there was any noticeable improvement in performance.. It did make a difference but with the price of Premium gas which my bike requires, there wasn't enough to add it very often.
Reviewed by Max's Classic:
I use this Octane Boost every time I fill up my Road Glide. The very first time I used it, 5 years ago, I could immediately notice the increase power from my Screaming Eagle engine. Never fails to give me superior performance.
Reviewed by
SeaBees:
I purchase the octane boost for when I arrived my Victory Cross Roads in high altitude to assist with power and when I'm out on the road such as the trip from California to Oklahoma.
octane boost works very well
Reviewed by D&A-Phill:
Our bikes require minimum 91 octane fuel. I got stuck with having to use 89 octane fuel once, bike started to ping. Got home, added the boost, it quickly eliminated the ping and restored performance. I look forward to trying it on 91 octane fuel to see how it dose.
Reviewed by D&A-Phill:
Our bikes require minimum 91 octane fuel. I got stuck with having to use 89 octane fuel once, bike started to ping. Got home, added the boost, it quickly eliminated the ping and restored performance. I look forward to trying it on 91 octane fuel to see how it dose.
Reviewed by Iron mule:
Good to have on a trip when you can not find 93 octane gas
Works good no kinks or pings when used
Reviewed by Iron mule:
Good to have on a trip when you can not find 93 octane gas
Works good no kinks or pings when used
Reviewed by JWJIII:
Run this octane boost in My 2012 Harley Tri-glide for last 2 years, love it!!! My Tri-Glide loves it, too!!!
Reviewed by webersrock:
The octane boost helps my new Ultra run great! The individual size bottles are easy to carry in the saddle bags, just pour it in when I fill up.
Reviewed by Fred Hartell:
I love this stuff! I've used it for all my HD motorcycles and it is AWESOME!
Reviewed by Ron:
I put this in my fuel tank after fill-up. The bike almost immediately had greater acceleration and snappy response. It is even more fun to ride now with the octane boost in the tank.
Reviewed by Tony:
I ran this in my bike for the last ride of the season,full tank and alot of riding. The bike seemed to have a little more kick to it on the throttle and the bike ran smooth.I will be using this in my bike for now on. Great product
Reviewed by pops:
Good product, could tell the difference
Reviewed by Kojack:
I use it in my Harley and I can see the difference I get great performance
Reviewed by Viper6:
Tried in in my motorcycle and likes the results.
Reviewed by Bikerdoc:
On a recent motorcycle trip I noticed my Harley started quicker than normal and better mileage
Reviewed by Jeff:
I only use 100% gas in my Harley but I can only buy the 87 octane in my area. I use this octane booster and my bike runs much smoother. plus having it in the small bottles to take with me is a bonus.
Reviewed by Dave:
Gives the gas a great boost, no pinging with this product
Reviewed by Dieselboy:
This additive makes my Victory cross country run smoothly and strong.
Reviewed by Jeff:
I add Octane Booster every other tank full to my Harley's to give it that extra Octane to burn more cleaner....
Reviewed by Jeff:
I add Octane Booster every other tank full to my Harley's to give it that extra Octane to burn more cleaner....
Reviewed by Charlie P:
Definitely gave my 2016 FLSTN a decent octane boost. Can feel the difference in the ride.
Reviewed by Nighthawk:
I ran this in my 2011 street glide with high compression..
Reviewed by Mack:
Weather needs to warm up to put it to use in the motorcyclesame
Reviewed by Mack:
Weather needs to warm up to put it to use in the motorcyclesame
Reviewed by Big D in Abilene:
I travel on long road trips on my bike and I prefer 93 octane, when I'm in the southwest part of the United States in the rural areas it can be hard to find 93 octane, I carry several bottles of octane booster to use during fill ups to keep my Harley running at it's top performance .
Reviewed by Joe:
Gave this a try to see if it would help with starting issues I was having, Can't say it helped with the starting issues but the engine ran noticeably smoother at highway speeds.
Reviewed by David:
I often use Amsoil Octane Boost while driving though certain Sates that have heavier Alcohol content in their gasoline. It greatly reduces pinging and adds power responses. I also will use the Octane Boost in the mountains for the basically the same reasons.
Reviewed by Tj:
Great for boosting your octane a few points in your bike.
Reviewed by ANDREW:
Added mpg, and engine runs smoother
Reviewed by Tim:
Great product. Unbelievable.
Reviewed by dp:
I use this product in my gas for my small engine equipment around the farm, it works very well in stablizing the gas and i thinks heips the equipment run better as well.
Reviewed by lotoofla:
Living in Washington State, I don't ride my 2014 BMW R1200RT-LC year round so I leave it in the garage hooked up to a Battery Tender, and the gas tank filled with Pure Gas AND 3 oz. of Amsoil's Gasoline Stabilizer. Every summer when I start up my bike there is little hesitation, and the engine settles down to a steady idle. Riding that first tank shows no problems or misses in any RPM range, though I don't get the full mileage of 300 miles, but with the very next tank of gas things are back to normal.
Reviewed by Mx:
Great stuff for dirtbike
Reviewed by n/a:
excellent product
Reviewed by AlYaz:
I trust Amsoil products, after using them for so many years. Our gasoline gets delivered by barge and then trucked to us. It's always got visible crud in it and I have to put it through a filter first. As soon as I get my gasoline, I filter it and add Amsoil Gasoline Stabilizer. While others in the area have had numerous problems with 'bad gas,' my gasoline has never let me down. It gets used in my Stihl saws, Echo yard equipment, my Polaris Ranger, my portable Honda generator, my Ariens wood splitter, etc. Never a problem.
Reviewed by Subwaync:
I drive a BMW and the last thing I want is a problem with the Fuel System. SO add this fuel additive to a Tank every so often and troubles stay away
Reviewed by n/a:
excellent product
Reviewed by Cal:
I like this product!
Reviewed by EG:
I recommend AMSOIL p.I. cleaner to anyone to clean the engine combustion chamber and fuel injectors or carburetor of a gasoline engine. I've used this exact product on a recommended vehicle maintenance schedule for many years. There is a very noticeable difference to prevent engine from knocking by cleaning the carbon from the combustion chamber. I use this in a Ford truck, Pontiac car and a Kawasaki motorcycle. Highly recommended above any product of its kind is AMSOIL p.I.
Reviewed by IronHeadChef:
Before I started using this product (P.I.) my 2006 Toyota Tacome was getting about 19 - 20 MPG. When I use this product it moves easily to 20-22 MPH. It must be doing something good. However, I must admit to using exclusively Amsoil Signature oil.
Reviewed by Papa Smurf:
I use a bottle of this every time I change my oil. So far at 240,000km (145,000m) no injector problems.......
Canada
United States
I won t buy this product again
use this in my DD2 go kart but don't see the difference