Zajac Motors
The Power to Do More
Zajac Motors - Platform for Complete Combustion
The Zajac Technology | Advantages

Fuel Efficient

  • More than 25% greater fuel efficiency than gasoline engines
  • At least 15% greater fuel efficient than Diesel engines
  • Greater range of operation
  • Same fuel efficiency at full load, partial load or idle 

Clean Energy

  • Unique “Platform for Complete Combustion” process yields virtually no pollutants
  • Greater fuel efficiency reduces greenhouse gas (CO2) emissions
  • Surpasses EPA emissions standards beyond 2016 without using any after-treatments
  • Supports efforts for cleaner air and water
  • Supports your organization’s sustainability initiatives
  • Eliminate the need to run Diesel engines overnight in cold weather


  • Advanced technology allows the Zajac engine to run with equal efficiency on any of these non-solid fuels – or any mix of these fuels. Changing fuels requires no changes to the engine, and has no affect on the engine’s horsepower, efficiency, or performance:
    • Any grade gasoline
    • Kerosene
    • Alcohol
    • Diesel fuel
    • Jet fuel
    • Heating oil,
    • Vegetable oil, or any unrefined oils
    • Bio-diesel
    • Propane
    • Methane (natural gas)
  • Reduce dependency on foreign oil resources and suppliers
  • Self-adjusts for variations in altitude and temperature, to maintain consistent engine power

Power Consistency

  • A flat torque curve ensures that the Zajac engine runs at maximum power at all RPMs, not just at specific RPMs.

Cost Efficiency

  • Savings to engine manufacturer
    • Elimination of unnecessary engine parts including:
      • intercoolers
      • most fuel injectors
      • most plugs
      • common rail systems
      • turbo chargers and
      • mufflers
    • Elimination of the need for expensive after-treatment systems including:
      • oxidation catalysts
      • urea injection
      • NOx traps
      • particulate filters, etc.
  • Savings to engine user
    • Lower fuel costs due to better fuel efficiency
    • Lower fuel costs due to the ability to use less expensive, less refined fuels
    • Lower maintenance costs due to no service, repair, or replacement is ever needed for the eliminated engine and after-treatment parts listed above

Quiet Running

  • Provides strategic advantage of quiet engine technology in military operations
  • Minimize noise pollution
  • Silent engine braking eliminates loud "jake braking" and the related strain on tires, drive shaft, transmission and clutch

Easy Starting

  • Engine turnover occors at a reduced compression ration for easy starting
  • Eliminates the need to run Diesel engines overnight in cold weather to avoid difficult starting






  • Highly fuel efficient
  • Non polluting, clean energy
  • Fuel flexibility
  • Maximum engine power at all RPMs
  • Economical and ecological
  • Quiet running
  • Easy starting