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What is more fuel efficient the manual or automatic transmission?

In general, a manual transmission is more fuel efficient than an automatic transmission. This is because a manual transmission allows the driver to select the gear that is most appropriate for the current driving conditions, while an automatic transmission makes this decision automatically.

The following are some of the reasons why a manual transmission is more fuel efficient:

* Engine speed: A manual transmission allows the driver to keep the engine at a lower RPM, which can save fuel. When the engine is running at a lower RPM, it is less likely to waste fuel by turning over unnecessarily.

* Gear selection: A manual transmission allows the driver to select the gear that is most appropriate for the current driving conditions. For example, when driving uphill, a driver can select a lower gear to give the engine more power and save fuel. In contrast, an automatic transmission will automatically shift into a higher gear, which can waste fuel.

* Driver control: A manual transmission gives the driver more control over the vehicle's fuel efficiency. By paying attention to the engine speed and gear selection, a driver can take steps to minimize fuel consumption. In contrast, an automatic transmission does not allow the driver to have as much control over these factors.

However, there are also some cases where an automatic transmission may be more fuel efficient than a manual transmission. For example, an automatic transmission can often help to reduce fuel consumption in city driving, where there is a lot of stop-and-go traffic. In these conditions, a manual transmission can require the driver to shift gears frequently, which can waste fuel.