what year did diesel exhaust fluid start


Diesel exhaust fluid (DEF) has been a staple of diesel engines for almost a decade now, but have you ever wondered when it all started? Join us as we take a look back at the history of DEF and how it has evolved over the years.

Diesel Exhaust Fluidity: A History

The first attempts at introducing DEF technology began in the 1920s with the invention of diesel engines. At the time, DEF was not a common concept and was largely ignored. It wasn’t until the 1970s that DEF began to gain traction, as automakers looked for ways to reduce emissions and improve fuel economy.

When the Diesel Exhaust Fluidity Began

The first diesel engines with DEF technology were introduced in the mid-1980s. However, it wasn’t until the early 2000s that DEF truly began to take off, as manufacturers began to require DEF in their vehicles. This was due to stricter emissions regulations, which required the use of DEF to reduce emissions.

From Zero to Diesel Fluidity

In the early days of DEF, the technology was limited and expensive, making it difficult for automakers to implement. However, as the technology improved and costs decreased, DEF became more widely available and more affordable. By the mid-2000s, DEF had become a common feature in diesel engines, and today it is a standard component of modern diesel engines.

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The Rise of Diesel Exhaust Fluidity

The rise of DEF has been a major boon for the automotive industry. The technology has helped reduce emissions and improve fuel economy, making diesel engines more efficient and environmentally-friendly. Additionally, DEF has enabled automakers to meet increasingly stringent emissions regulations, and has helped make diesel engines more cost-effective.


Diesel exhaust fluid has come a long way since it was first introduced in the mid-1980s. Today, DEF is a standard feature in diesel engines and has helped reduce emissions and improve fuel economy. DEF has become an indispensable part of the automotive industry, and its importance is only likely to grow in the years to come.

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what year did diesel exhaust fluid start

by Aaron time to read: 1 min