Description
Review this item in the context of the repair, installation access, nearby parts, and the result the completed job is intended to achieve.
Quickly disperses moisture and dissolves gum, varnish, and other fuel residues from the entire fuel system, fuel tank, fuel lines, fuel injectors, valves, rings and pistons with H.E.S.T. Regular use ensures higher compression, fewer repairs, lower operating costs, and increased spark plug and injector life. Available in both consumer and commercial sizes. Catalytic converter and oxygen sensor-safe.
No structured vehicle fitment data is available. Compare the listing with the vehicle and existing part before ordering.
Repair scenarios, installation, companion parts, and use outcomes
Buying guidance
Quick decision
Review this fuel cleaning tools in the context of the repair and the surrounding components.
Repair scenario
- Identify the symptom and confirm that this is the component required by the repair.
- Inspect nearby connectors, fasteners, and mating surfaces before installation.
Installation notes
- Use the listing instructions when present and follow the vehicle service procedure.
- Professional installation may be appropriate when the repair requires special tools or calibration.
Companion parts
- Inspect nearby fasteners, connectors, seals, fluids, and wear items before starting the repair.
- Use the service procedure and the visible package contents to identify any additional parts or tools required.
Before you buy
- Compare the listing title, photos, package contents, and specifications with the part being replaced.
- Confirm vehicle compatibility and installation requirements before ordering.
Customer feedback
Ratings and written reviews
4.8 / 5
235 source ratings
Source: Amazon. Imported marketplace feedback is shown for product research and is not a review of a purchase made on this website.
MWilcox –
You know how they say you wish you had the old stuff the old stuff work better it was pure. This is it! This stuff has been around for 50 60 years or more and it works like a charm and it’s cheaper than the so-called name brand and it works better because it’s more concentrate. I used it in my cars I use it in my small engines. I’m going to try it in a chain saw that has been sitting for years with gas in it I’m 100% positive it will clean out the carb an it will will run. I’ll have to up date that here.
Kevin Rathke –
Great product that helps clean out fuel system. This results in increased gas mileage & helped smooth rough idle on one car!
Tom G –
I’m very happy with the product as I am seeing two miles more per gallon and crisper performance in my 1998 Ford Ranger extended cap with a 3.0L V8. I also notice less dieseling when in a high gear at low speed under acceleration. I’ve ordered another case to maintain the performance.
Jeffrey W. –
I add this to my fuel every refill. I never have gummed carbs… ever.
Daniel P. –
Shipped fast. Great price. Good product. Good seller. Totally satisfied.
Sandy1248 –
We’ve been using Berrymans B12 Chemtool for years and have never had to have our injectors cleaned. We give it to our kids for Christmas!
Jeff –
Product arrived on time and well packaged. People who know no that Berryman’s is a great product and buying in bulk is a great way to save a couple bucks over time especially if have multiple cars.
Greek Lady –
Keep your fuel system clean, and your vehicle will run much better, for longer, without lots of trouble. I really do recommend this product over all the others I’ve tried.