Bi Fuel Engines : Diesel – Natural Gas

Almost any diesel engine can be converted to a bi-fuel engine. The OptiBlend® bi-fuel kit prioritizes engine health over diesel displacement. The OptiBlend® bi-fuel kit has two alarm levels which will either reduce the natural gas until the alarm is cleared, or shutdown the system until reset by the operator. The HMI displays real-time fuel flow, displacement, and alarm status. The OptiBlend® system can also communicate with other controls via J1939 or Modbus.  


bi-fuel engines oil and gas industry

Oil and gas projects typically rely on more than one hard-running generator in either backup or primary function capacity — and rely on diesel fuel. To stretch those tanks of diesel fuel, cut emissions, and guarantee uptime of critical engines in remote job sites, more and more operators are retrofitting their diesel engines with conversion kits that run efficiently enough to deliver ROI in as few as 250 hours of runtime.

bi-fuel diesel generator disaster response, relief and recovery

A diesel engine generator can save lives as part of a healthcare facility’s disaster response arsenal. A diesel engine generator that can seamlessly run diesel and natural gas means extended uptime for critical operational and lifesaving functions, stretching supplies when conditions are tough and resupply is uncertain. OptiBlend® conversion kits provide a more secure bi-fuel backup solution and have been proven on many OEM diesel engines including Caterpillar®, Cummins®, Kohler®, MTU®, John Deere®, Mitsubishi®, and more.

bi-fuel engine dealers

OptiBlend® is the preferred aftermarket bi-fuel solution by engine dealers. The OptiBlend® bi-fuel system has been installed in hospitals, oil and gas job sites, defense facilities, and more since 2009. Our experienced engineers and technicians are available 24 hours a day, 7 days a week to support our customers.


bi-fuel gas train installation

The bi-fuel gas train components come in multiple sizes and configurations to accommodate a wide range of engine power. The gas train is designed for operating temperatures from -15°C to 60°C (-13°F to 176°F) and can be fitted with an optional cold weather package for extremely cold environments. The bi-fuel controller monitors the gas train temperature to maintain safe dual fuel operation.

The gas train is designed to maintain a negative outlet pressure. Gas will only flow while the engine is running, creating an intrinsically safe system, and maintaining a constant gas to air ratio.



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    OptiBlend :: Savings & CO2 Offset Calculator

    100% Diesel Operation

    Assumed Efficiency Diesel


    Estimated Efficiency Dual Fuel




    Diesel Power Required


    Annual Operating Hours


    Annual Energy


    kJ Required


    Annual Liters of Diesel


    Annual Gallons of Diesel


    Cost/Gallon Diesel


    Annual Fuel Costs

    Dual Fuel Operation

    Displacement (assumed)


    Diesel Power Required


    NG energy/volume


    kW from natural gas


    scf NG Required


    NG Cost/scf


    Annual NG Cost


    Annual Diesel Cost


    Total Annual Dual Fuel Cost


    Total Annual Savings


    Savings as a %


    Ready for Any Industry.

    Learn why OptiBlend® is the answer to lower fuel costs, improve emissions, and increase runtime in any industry.

    OptiBlend :: Savings & CO2 Offset Calculator
    Generator Size (KW)
    Generator Load
    Gallons / hr
    $ / Gallon
    $ / Hour
    $ / Day
    $ / Year
    CO2 total lbs

    *calculation assumes 70% displacement, 1 Gallon CNG = 5.66lbs , Diesel Equivelant = 6.384 lbs
    **calculations are based on your input data and are approximations