This setting acted similarly to a higher gear, designed to improve fuel efficiency. By keeping engine revolutions lower and adjusting performance, it helped reduce fuel consumption—particularly during steady driving, like cruising on the highway.
It was a simple, mechanical way for drivers to prioritize efficiency over power. Instead of relying on complex systems, the car itself offered a basic option to save fuel.
As automotive technology advanced, this feature became less necessary. Modern cars use sophisticated engine management systems, improved fuel injection, and smarter transmissions to automatically balance power and
