FECO X3 applies high technology that emits Far Infrared (FIR) radiation within the 8–14µm wavelength range,generating resonance at a frequency of 298,000 × 10⁹ oscillations per second..

The resonance vibration helps reduce intermolecular bonding forces in fuel,increases the contact surface area between fuel and oxygen, and optimizes the mixing process inside the combustion chamber.

As a result, combustion becomes more complete, contributing to improved engine operating performance.