Customer Ratings & Reviews

Always good products and service from my friend Rich Day!!

Most the time I carry one bottle in my car when I'm on road trips. I like to put it in on the last tank of gas before I get home. Not sure if it does anything but my car does seem to run alittle smoother. Normally I just run ethanol free gas and never use fuel additives.

bonne recommandation

Have not had enough time on this to give a good account

Not sure why I even Buy this Stuff 🤷‍♂️ but I do Occasionally to Put in our 2018 FORD EDGE V6. I do not get any More MPG at all, NOT 1" further, I use it Hoping it Cleans stuff up. At the Price of this, I use StarBrite On a Regular Basis, 32oz ($30) Treats 1200 GALLONS. and, It works for a Multitude of Uses/Issues including Diesel Issues.

Makes a difference in 2012 Jeep. Engine runs more smoothly and adds 5-7% improvement in mpg.

Car runs smoother- good insurance for the fuel system

keeps my engine running like a champ and the gas mileage is great

For the first time I put in all 3 of my vehicles, 2013 Infiniti, 2011 Lexus RX350 & 2000 GMC Sierra. I only noticed a difference in the GMC, improved performance. Most likely because is has 287,000 miles on it. I'm sure it improved performance in all 3.

Haven't used this product long enough to give it a honest review, but if it is as good as the other Amsoil products then its a good product.

I use this a couple of times a year in all my vehicles to clean my engine. I usually add it before a long trip on the road to get a good cleaning. It's hard to say but it seems to keep my engine running good.

I use this occasionally just because. I don’t think it does anything for Milage and Not sure about Cleaning anything since I don’t get an INCH MORE per mile or gallon of Fuel ⛽️. And I don’t tear down my Engine to look at valves and Injectors and I don’t own a Bore Scope! It’s too expensive if ya ask me but I switch back n forth between StarTron and this Stuff. Star Tron is $32 per QUART (32OZ) And Treats 1200 Gallons of Fuel! Yes, thats 1200 GALLONS (1200).... a much better deal and probably every bit as good. Even still not an inch a Gallon per mile!!! Nothing!!! Is it worth it??? I suppose it’s piece if mind and Nothing more???

Never really notice an increase in mileage but it does help if get bad gas and with emissions. Get this for every 4000 miles

Awesome product for our Toyota car and Honda generator Keeps fuel system like new!

pickup starts easier and runs smoother, no more rough idle. and fuel mileage increased by approximately 2 MPG.

my first year using Amsoil products in my car and small engines. so far I cant complaint .I really notice the difference and will continue to use Amsoil products.

Not how the directions say but I usually put a few oz in with each fill as a maintenance dose. I usually buy nonalcohol top tier gas which means it has a good amount of cleaners added at the blender. I drive my daily drivers over 300,O00 miles and so far no O2 or fuel injection problems. Fuel pumps usually last about 200,000. I drive my dailies over 300,000. Also have '54 inline 6 with 6V points ignition. Plugs stay clean for 10,000 miles which is my replacement interval.

seems to work as listed.

It did seem to improve the performance.