Rated 4.6 out of 5 by 9
Rated 5 out of 5 by carruncho521 this product is great
perfect to clean the system
October 17, 2016
Rated 5 out of 5 by robertg great stuff
I had a po 306 misfire cylinder 6 changed spark plug and wire still came back i was going change fuel injector so instead tired berryman b-12 chemtoll put it in tank 1 day light was gone 4 weeks !
October 8, 2016
Rated 5 out of 5 by DMONI So easy, I didnt mess up my manicure :)
My father recommended this product since my car is over10 years old. He's 72 and has always used B-12 treatment is his cars.
September 21, 2016
Rated 5 out of 5 by Cleaner1 It worked as advertised
My Avi was under performing. So got advise from Parts Dept. clerk to try this product. per instructions on can after using this product twice, my Avi is back to her old self. Mileage is back up and i'm happy.
September 13, 2016
Rated 5 out of 5 by Spook How often is the cheapest product the best? Here's one.
Not only does it work faster then any other injector cleaner I have ever used its also the least expensive. Its the only choice for me as long as I am using it only for treating gasoline injectors.
August 6, 2016
Rated 1 out of 5 by BDRL69 Berryman Products B-12 Chemtool
This product did nothing to my car. Its not as advertise!!
May 18, 2015
Rated 5 out of 5 by Bill1220 Been around awhile and still the BEST
I started using Berryman B-12 in 1963 with my car. It worked great and has never changed. I use the pourable can to in the fuel tank and the spray can in the engine intake to keep my system clean and working at top performance. I've tried others. Some a lot more expensive but was not impressed. I always come back to B-12. I've told others who were looking at other brands to start with the best, they won't refret it.
November 26, 2014
Rated 5 out of 5 by WRSOKC wonderful product
Did what it advertised it would do.,.................
November 20, 2014