Is it normal for the engine to run at 3000 RPM when the speed is 100 mph?

[MicahDella]

It is not normal for the engine to run at 3000 RPM when the speed is 100 mph on flat ground. However, it is normal when driving uphill at 100 mph with the engine at 3000 RPM, as the resistance and load are greater uphill, requiring the engine to maintain a higher RPM to sustain the current speed, which necessitates pressing the accelerator. Additional relevant information is as follows: 1. For manual transmission cars with an engine displacement below 2.0L, the engine RPM is around 3000 when the speed reaches 120 km/h. The RPM for automatic transmissions (AT) is similar to that of manual transmissions or slightly lower, while CVT transmission models have the lowest RPM. 2. A lower RPM indicates that the engine can deliver high torque at low RPM ranges, with sufficient torque, and the highest gear ratio of the transmission is small enough. Meeting these two conditions allows for lower RPM. The quality of an engine cannot be judged solely by its RPM. Lower engine RPM reduces wear and results in better fuel efficiency.