Umair Ramzan 
Efficiency and performance are two of car buyers’ most important factors when purchasing a vehicle. One metric often used to measure these factors is E/T, or “energy per unit of time.” In this article, we will explain what E/T is and how it is used to evaluate the efficiency and performance of a car.
What is E/T in a Car?
E/T is a measure of the amount of energy that a car uses over a given period of time. This energy can come from various sources, such as gasoline, diesel, or electricity. The unit of measurement for E/T is typically miles per gallon (MPG) for gasoline and diesel vehicles and kilowatt-hours per 100 miles (kWh/100 mi) for electric vehicles.
How is E/T Measured?
E/T is typically measured by conducting a standardized test known as the “Federal Test Procedure” (FTP) or “New European Driving Cycle” (NEDC). During these tests, a vehicle is driven on a dynamometer, which simulates real-world driving conditions. The vehicle’s fuel or energy consumption is measured and recorded, and the E/T is calculated based on this data.
How is E/T Used to Evaluate a Car’s Efficiency and Performance?
E/T is often used to compare the efficiency and performance of different vehicles. A car with a higher E/T rating will typically use less energy (or fuel) over a given period of time, which means it will be more efficient. A car with a higher E/T rating will typically perform better, as it can travel farther on the same amount of energy (or fuel).
How is E/T Affected by Different Factors?
E/T can be affected by various factors, such as weight, aerodynamics, and engine efficiency. A heavier vehicle will typically have a lower E/T rating, as it will use more energy to move. Similarly, a vehicle with poor aerodynamics will have a lower E/T rating, requiring more energy to overcome wind resistance. Finally, an engine that is not as efficient will also have a lower E/T rating, as it will use more energy to produce the same amount of power.
FAQs
How is E/T measured?
E/T is typically measured by conducting a standardized test known as the “Federal Test Procedure” (FTP) or “New European Driving Cycle” (NEDC). During these tests, a vehicle is driven on a dynamometer, which simulates real-world driving conditions. The vehicle’s fuel or energy consumption is measured and recorded, and the E/T is calculated based on this data.
What is a good E/T rating?
A good E/T rating will depend on the type of vehicle and the energy source. A good E/T rating is above 30 MPG for gasoline and diesel vehicles. A good E/T rating for electric vehicles is below 3.5 kWh/100 mi.
Can I improve my car’s E/T rating?
Yes, you can improve your car’s E/T rating in several ways. Some of the most effective methods include driving more efficiently, maintaining your vehicle regularly, and reducing the weight of your vehicle.
