WLTP vs EPA: What is the Difference Between the Standards?

WLTP vs EPA: What is the Difference Between the Standards?

The WLTP (Worldwide Harmonized Light Vehicle Test Procedure) and the EPA (Environmental Protection Agency) are two different testing procedures used to evaluate the fuel economy and emissions output of vehicles.

Both tests are used to measure a vehicle’s performance in terms of carbon dioxide (CO2) emissions, fuel economy, and other pollutants. However, there are some major differences between the two tests, and it is important to understand them before making a purchase decision.

WLTP: Europe’s performance measurement

Volkswagen explains the the WLTP standard

The WLTP test is used in Europe to measure the performance of vehicles. It is a more stringent test than the EPA, and it takes into account a wider range of driving conditions and vehicle types.

The test is designed to simulate real-world driving and is conducted on a track that is designed to represent a variety of road types. The test consists of four phases: city, highway, extra-urban, and combined. The combined phase is used to calculate the vehicle’s fuel economy and emissions output.

EPA: US performance measurement

The EPA test, on the other hand, is used in the United States to measure vehicle performance. It is a less stringent test than the WLTP, and it does not take into account a variety of driving conditions and vehicle types.

The test is conducted on a dyno, which is a type of machine that simulates a variety of driving conditions. The EPA test consists of two phases: city and highway. The city phase is used to calculate the vehicle’s fuel economy and emissions output.

The EPA explain their standard

WLTP and the EPA: How do they compare?

When comparing the WLTP and the EPA tests, it is important to note that the WLTP test is more stringent and takes into account a wider range of driving conditions and vehicle types.

The EPA test is less stringent and does not take into account a variety of driving conditions and vehicle types. Both tests are used to measure a vehicle’s performance in terms of carbon dioxide (CO2) emissions, fuel economy, and other pollutants.

Conclusion: WLTP vs EPA

The WLTP and EPA tests are both important tests used to measure a vehicle’s performance. It is important to understand the differences between the two tests and how they are calculated before making a purchase decision.

This will help ensure you are buying a vehicle that is both efficient and meets your needs.