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fuel management module

Smarter Fuel Insights, Real Results

The American CNG Fuel Management Module (FMM) is designed to simplify and strengthen the performance of every CNG fuel system. This compact unit integrates regulators, valves, safety devices, and other key components into one streamlined assembly. By consolidating these critical parts, the FMM reduces installation time, minimizes potential leak points, and creates a cleaner, more efficient system layout. The result is a fuel management solution that is easier to install, service, and maintain over the long term.


For fleet operators, the benefits go far beyond convenience. The FMM improves overall system reliability, enhances operational control, and reduces downtime by making diagnostics and maintenance more straightforward. With safety and efficiency engineered into its design, the FMM ensures consistent performance under demanding fleet conditions while giving operators the peace of mind that their vehicles are running at peak capability. As a central element of American CNG’s integrated fuel systems, the FMM represents the perfect balance of innovation, practicality, and durability.

cng fuel systems

Efficient & Eco-Friendly Fuel Solutions

Compressed Natural Gas (CNG) fuel systems offer a cleaner, eco-friendly alternative to gasoline and diesel. CNG reduces emissions, lowers fuel costs, and requires less maintenance due to its cleaner combustion. Widely used in fleets and personal vehicles, CNG is a reliable and sustainable choice that continues to evolve with advancements in technology.

Real-Time Accuracy for Every Mile

FMM OVerview

  • Custom Branded
  • Integrated Manifold Design
  • High-Quality Components
  • Electrical & Safety Features
  • SmartGauge with Options
  • Built for the Real World
  • Service-Friendly

Confidence in Every Mile

Distance to empty overview

Our algorithm integrates three dynamic calculation modules

1) Corrected Fuel Density

a) Adjusts fuel quantity based on actual tank temperature
b) Accounts for seasonal variations (±15% range impact between summer/winter)

2) Real-Time Engine Efficiency Modeling

a) Efficiency can vary 40-70% from base rating depending on driving conditions

3) Multi-Parameter Range Calculation

a) Provides both theoretical and conservative (safety-margin) range estimates
b) Includes fuel status alerts and refueling recommendations (low fuel warnings)

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