Optifuel Fuel Saver

The Optifuel Fuel Saver is a compact electronic device designed to interface directly with a vehicle's OBD2 (On-Board Diagnostics II) port. This small, lightweight unit presents itself as a simple solution to improving fuel efficiency without requiring any permanent modifications to the vehicle. Its primary function, according to manufacturer claims, is to optimize the vehicle's Electronic Control Unit (ECU) programming to create more efficient fuel consumption patterns.