Our #1 Berryman pick
Top-ranked Carburetor Cleaner in our Berryman lineup, scored independently on effectiveness, health, and environmental impact. No paid placements.
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Berryman Products is a family-owned chemical company based in Arlington, Texas, founded in 1918. The B-12 Chemtool line — carburetor and choke cleaner, fuel injector cleaner, total fuel system cleaner — has been a staple in small-engine repair shops, motorcycle restoration garages, and automotive parts stores for decades.
The brand's reputation in the small-engine and powersports communities is strong; Berryman B-12 is one of the most recommended carburetor cleaners on lawn-mower and vintage motorcycle forums, particularly for sit-started seasonal equipment with mild-to-moderate fuel varnish. The product line spans VOC-compliant and standard formulations depending on the state of sale.
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See where Berryman lands in our ranked buying guides.