A study reveals that your diesel car is more toxic when it's hot

A recent investigation of more than 180,000 cars confirms that diesel cars emit more polluting gases in hot weather. Thus, more climate change, higher temperatures and more toxicity.

Summer makes you want to go out for a walk at night, go to the beach during the day or enjoy a soda on a terrace. However, this is a problem because summer affects the polluting gases of cars. It doesn't matter if it's new cars or one with several tens of thousands of km. The case is that diesel emits more toxicity in hot weather. But why is this happening?

Diesel emits more heat pollution

Although not everyone agrees, it seems that the consequences of global warming are quite evident. The temperature has risen on earth and one of the reasons is for diesel combustion engines. In addition, it is the whiting that bites its tail. Because according to a recent study it has been shown that the hotter it is, the more pollution emitted by diesel cars.

This phenomenon occurs when the 86º Fahrenheit is exceeded, or what is the same, about 30ºC. This research is called TRUE (acronym for The Real Urban Emissions) and focuses on the pollution generated by these types of vehicles. A pollution that, according to TRUE, often exceeds what the latest regulations of the European Union allow.

To carry out the study, lasers have been used to measure contamination. In essence, nitrogen oxide, particulate and CO2 emissions data were taken from more than 180,000 cars. This sample includes both passenger cars and buses, and the tests were carried out throughout the summer of 2018 with the collaboration of Anne Hidalgo, the mayor of Paris.

The conclusions determine that even the Euro 5 and Euro 6 diesel car models emit between 20% and 30% more pollution with temperatures above 30ºC. And motorcycles pollute up to eleven times more carbon dioxide and six times more nitrogen oxide than an average gasoline vehicle for every liter of fuel consumed. It is worth that the motorcycles consume much less, but they are very high figures.

In any case, the results focus more on diesel cars, which can contaminate up to 18 times more than allowed by the European Union when temperatures are higher. In addition, as we said at the beginning, it is getting hotter in the cities. Without going any further, Paris exceeded 30 ° C in 2018 for 20 days last summer. Therefore, as climate change increases, there will be more pollution.