Berryman B-12 Chemtool Fuel System Cleaner, 15 oz
Berryman B-12 Chemtool Fuel System Cleaner, 15 oz
Hero image 0 of Berryman B-12 Chemtool Fuel System Cleaner, 15 oz, 0 of 10
50+ bought since yesterday, try a subscriptionOverall pick
Visit the Berryman Products Store

Berryman B-12 Chemtool Fuel System Cleaner, 15 oz

Berryman B-12 Chemtool Fuel System Cleaner, 15 ozB 12 Chemtool Carburetor Fuel System and Injector Cleaner2 pack Berryman Products B 12 Chemtool Carburetor 0116 Automotive Additive 15 oz24 pack Berryman Products B 12 Chemtool Carburetor 0116 Automotive Additive 15 oz6 pack Berryman Products B 12 Chemtool Carburetor 0116 Automotive Additive 15 oz12 pack Berryman Products B 12 Chemtool Carburetor 0116 Automotive Additive 15 oz
Pack Size:Single

Key item features

  • Complete Cleaning: Cleans the entire fuel system, including the gas tank, intake valves, fuel pump, and carburetor, while also functioning as a fuel injector cleaner.
  • Residue Dissolver: Quickly dissolves petroleum residue, gum, and varnish for effective cleaning and restores fuel injectors to their original spray pattern.
  • Moisture Dispersal: Disperses moisture from the fuel system, fuel injectors, valves, rings, and pistons, preventing related issues.
  • Performance Enhancement: Utilizes high-energy solvent technology to restore power, reduce emissions, and ensure higher compression.
  • Maintenance Reduction: Leads to fewer repairs, lower operating costs, and increases the lifespan of spark plugs and injectors.
  • Catalytic Safety: Safe for use with catalytic converters and oxygen sensors, ensuring no damage to these critical components.
  • Engine Versatility: Formulated for gasoline engines in cars, trucks, RVs, motorcycles, small engines, lawn and garden equipment, ATVs/UTVs, boats, and generators.
Generated by AI
Current price is $4.9733.1 ¢/oz
Price when purchased online
  • Free 90-day returns
Subscribe, Your usuals, on your schedule, Save time and stay stocked!, $4.97
Your usuals, on your schedule
Save time and stay stocked!
One-time purchase $4.97

How do you want your item?

Plus, get 50% off an annual plan at checkout!
How do you want your item?
Pickup from
Pickup as soon as 7am tomorrow
Aisle L38
Sold and shipped by Walmart.com
Free 90-day returns
This item is gift eligible
walmart plus

Get 50% off a year of Walmart+

Exclusions, T&C apply.

About this item

Product details

Specifications

Warranty

Warnings

Refine your search

Customer ratings & reviews

4.8 out of 5 stars
stars1,460 ratings546 reviews
How item rating is calculated
  1. 5 stars87% (1,267)
  2. 4 stars8% (122)
  3. 3 stars2% (33)
  4. 2 stars1% (12)
  5. 1 star2% (26)

Reviews summary

Pros

  • : Suitable for multiple types of vehicles and equipment.
  • : Offers lower cost compared to similar products.
  • : Improves fuel efficiency and engine performance.
  • : Helps remove residue and deposits from engine components.
  • : Helps dissolve deposits and clean components.
  • : Improves gas mileage by optimizing engine performance.
Generated by AI

Customer photos

  • +10 images
Filtered and sorted results would be available on the new 'Customer ratings & reviews' page.
Sort by |

Showing 1-3 of 546 reviews

Nov 5, 2025
Ryan
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Magic bullet right here.

For years I have been using Berryman's B12 for routine maintenance and deep cleaning. Where I currently reside it gets pretty cold for a few months out of the year, people Park there carbureted toys for several months and call me up wondering how much it's going to cost them to make it run right again and I tell them about $10. What you need to do is throw in a can of this stuff right here and fill your tank with some premium fuel and let it work its magic. This stuff will absolutely clean up any residual residue from bad quality fuel or gas that sat all winter. You can also use it for preventive maintenance like adding it to your tank before you plan on storing it to act as a fuel stabilizer or simply pour in a can a few times a year to keep your fuel system sparkly clean. Other brands like Seafoam have national recognition for their long-standing reliability but this stuff works just as well if not better at half the price.

Helpful?7J743V7AMO7B16817404
Dec 10, 2025
BT
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Great stuff!

I’ve been using B12 for 4 years now it’s always helped my cars out with improving gas mileage and overall performance. I recently bought a car with 2 check engine codes for rough idle and catalytic converter. After I put a can of this stuff in my tank and drove it 100 miles the check engine light turned off, and both codes were gone. It saved me a lot of money! I highly recommend it. I just wish they’d keep it at this price because it has been going up a lot over the last year.

Helpful?7J743V7AMO7B16817404
Nov 2, 2025
RD
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

I got check engine light to go off with this...

...if only temporarily. It won't replace a trip to the mechanic, but it got a stubborn reoccurring check engine light to go away before I had to get me vehicle smogged. This stuff is great.

Helpful?7J743V7AMO7B16817404