BG

BG Fuel System Cleaner 44K — 1 can treats up to 20 gal, restores throttle response

High-performance automotive accessories made for confident daily results

$42.42

3 shoppers currently have this item in cart.

Low stock: only 10 left in inventory. Add to cart before it's gone.

Shop Pay installment options may appear at checkout where eligible.

Free shipping Secure checkout 100% refund eligible
Bundle & save Buy 2 and save checkout time

Premium automotive accessories quality selected for Canada customers.

Routine pack Build your routine pack (3)

Fast dispatch with always-free shipping and secure checkout on every order.

Free shipping

i

Free shipping on every order. Fast dispatch, tracked delivery, and secure checkout included.

Easy returns

i

Simple return flow and responsive support for eligible items.

Peak-demand shipping delays

i

During high demand, deliveries may experience short carrier delays. Tracking updates remain active for every order.

24/7 customer support

Questions before checkout? Our team is available and ready to help.

Share

Why customers choose NorthTrail Auto

BG 44K Fuel System Cleaner is an add-in formula that rapidly dissolves deposits across the fuel system to restore throttle response, reduce hesitation, and improve combustion.

BG 44K is a concentrated fuel-system treatment designed to be poured into a vehicle’s gasoline tank. It targets carbon and varnish buildup on fuel injectors, intake valves, ports and combustion chambers without harming oxygen sensors or catalytic converters. Compatible with alcohol-blended fuels and common additives, the formula works with modern fuel-system materials and treats up to 20 gallons per can.

How will BG 44K affect immediate drivability?

BG 44K works quickly to remove upper-engine deposits that cause rough idling, stalling, or hesitation. Many drivers notice smoother acceleration and reduced stumble after a single treatment as injectors and intake passages clear.

  • Clears coked fuel injectors to improve spray patterns and fuel metering
  • Removes varnish from intake valves and ports to restore airflow
  • Reduces engine surge and hesitation for steadier throttle response
  • Treats one can per up to 20 gallons of gasoline for full-tank coverage

Will it harm fuel-system components or emissions equipment?

BG formulated this cleaner to be safe for common fuel-system materials and alcohol-blended fuels. It does not contain alcohol and is labeled safe for catalytic converters and oxygen sensors when used as directed.

  • Compatible with seals, hoses, injectors and fuel pumps
  • Safe for oxygen sensors and catalytic converters under normal use
  • Works with ethanol-blended gasoline and aftermarket additives
  • No harsh solvents that degrade fuel-system rubber or plastics

How often should I use BG 44K and what results can I expect?

Use BG 44K as a targeted treatment when you detect reduced performance or as part of periodic maintenance every few thousand miles depending on driving conditions. Results vary by deposit severity; many users report improved fuel economy, smoother idle, and regained power after one application.

  • One can treats up to 20 gallons of gasoline — use per full tank
  • Noticeable improvement often after a single fill-and-drive cycle
  • Heavier deposits may require follow-up treatments or professional cleaning
  • Helps maintain combustion quality and overall engine responsiveness

Who is this for? BG 44K is aimed at drivers and technicians who want a fast, engine-safe way to remove fuel-system deposits that rob performance. It’s suitable for daily drivers, fleet vehicles, and enthusiasts seeking to restore throttle response, reduce hesitation, and maintain fuel-economy without component damage. Always follow the product directions and local safety guidelines; note the product carries standard chemical warnings and should be handled with care.

Safety note: Read the label before use. Contains chemicals known to the State of California to cause cancer and reproductive harm; use with adequate ventilation and avoid prolonged skin contact.

FAQ

Q: How much gasoline does one can treat?

A: One can of BG 44K treats up to 20 gallons of gasoline.

Q: Is BG 44K safe for catalytic converters and oxygen sensors?

A: Yes — when used as directed, BG 44K is safe for catalytic converters and oxygen sensors.