What is the optimal avg for fuel efficiency?
1 Answers
When driving, fuel-injected engines generally achieve optimal fuel efficiency at around 2200-2500 RPM. Maintain this engine speed range regardless of gear position. 1. RPM impact on engine: Too low RPM causes poor vehicle movement, wasteful fuel consumption without propulsion, and engine damage. Excessively high RPM increases ineffective fuel consumption and also harms the engine. 2. Gear shifting notes: Slightly increase throttle during gear changes to make the tachometer reach slightly above 2500 RPM. Shifting below 2000 RPM will cause speed to drop further after shifting, creating a gear-disengagement sensation that requires additional throttle correction, ultimately consuming more fuel.