3012 RNDR

Concentrated detergents and H.E.S.T. additives ensure targeted one-tank clean-up of intake valves and fuel injectors or carburetors.Dissolves gum, varnish, and other deposits from intake valves and fuel injectors resulting from the repeated use of poor quality fuels. Improves fuel economy and maximizes injector life. Catalytic converter and oxygen sensor-safe.


  • atv utv
  • car
  • chainsaw
  • dirtbike
  • generator
  • jetski
  • largeboat
  • motorhome
  • motorcycle
  • pushmower
  • racecar
  • ridingmower
  • smallboat
  • snowmobile
  • truck

Net 12 fl. oz. (355 mL) Pour-In Long-Neck Bottle. Capless Tank Compatible.

Part #3012

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I was looking for a fuel injector cleaner to treat a rough idle on my 2010 GMC Sierra. There was 30 products to choose from at my auto parts store. I decided to get Berryman’s because it was the only one in a metal can. I figured if it needs a metal can to contain it, it must be strong. I bought 2 cans. The first can straightened out the problem. I recommend to everyone and everyone has called me back to say thank you. I had a neighbor who did not drain his gas in his lawnmower for the winter. In the spring, he started it up and it was surging and would not rev up. I put about 2 ounces in the tank and told him to just let it idle for a while. Within a half hour, it stopped surging and ran like a champ. I now treat my lawnmowers with it. At the end of the season I put 2 ounces in the tanks and let them run until they run out of fuel. In the spring they start with one pull. I just noticed that my truck was getting 18mpg on a route that I take twice a week. I just put a can in and ran the route and got 19.5. With an increase of a 1 and a half mpg, X 100 miles, the stuff pays for itself. I now use it to clean throttle plates with a toothbrush. I love this stuff.

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Used it in my mothers 2005 Nissan Altima, without it car misses and has P0301 truble code, started using an miss went away and check engine light went off.

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I have a 79 Suzuki GS850g. Started to lose power while running and stalling out. Was going to get a carb rebuild, but tried the Sea stuff to no avail. Decided to try this product. Used 15oz in about 3 gallons of gas. Bike was running smoothly within 1/2 an hour. Would 100% recommend and will continue to use.

berryman b12 fuel system cleaner


My grandson added a couple of ounces of B-12 to his 1997 Sea Doo that was stalling and hesitating. Amazing results in only about 5 minutes of run time on the water. I’ve never seen anything work so well; so fast.

berryman b12 fuel system cleaner


I’ve used the Berryman B-12 Chemtool fuel system cleaner in my 70 year old 1947 Ford 8n Tractor for the past 7 years that I’ve owned it to keep it running rite. One bottle a season keeps my 8 N running like a champ whether I’m clearing snow from my driveway, mowing the grass or simply giving hay rides. Hunka B-12 really helps battle those ethanol Gremlins.

General compliance disclosure: This guide is provided to assist our customers in determining product compliance with state VOC regulations. Please note that individual states may amend their regulations at any time and that additional states may also adopt regulations in the future. Although Berryman will make a good faith effort to keep this guide updated, please be aware that this information is provided as a courtesy and without guarantee. It is ultimately the user’s responsibility to confirm the appropriateness of a finished product for a given application.

VOC Compliant in all 50 states