Turning off your diesel engine immediately after a long journey can cause costly damage, especially to the turbo. Find out how long you should wait before turning off the ignition and why this precaution is essential for the longevity of your vehicle.
The importance of cooling time
After a long journey, particularly on a motorway or main road, it is crucial not to immediately turn off your diesel engine. The rule of thumb is to let the engine idle for about two minutes before turning off the ignition.
This practice is essential for several reasons:
Neglecting this step can result in expensive repairs, which can reach several thousand euros in the case of turbo failure.
The turbo, a sensitive component
The turbocharger has become an essential element of modern diesel engines. It offers many advantages:
However, the turbo is also a sensitive component that requires special attention. During a long journey at high speed, it reaches very high temperatures. Sudden stopping of the engine can result in:
Risky situations
The greatest risk occurs during stops along the way, particularly at motorway service areas. This is when drivers tend to forget about the necessary cooling time.
On the other hand, upon arrival at the final destination, the risk is often lower. In fact, the last few kilometres in the city, with their stops at traffic lights and slowdowns, already allow for a gradual cooling of the engine and turbo. In this case, a minute of idling may be enough.
Best practices to preserve your engine
To effectively protect your diesel engine and its turbo, here are some recommendations:
An investment for the future
Getting into the habit of letting your diesel engine idle for a few minutes before turning it off can seem restrictive. However, this simple precaution can save you thousands of dollars in avoided repairs.
Additionally, by preserving the integrity of your engine and its turbo, you help maintain the performance and efficiency of your vehicle over the long term. It's a small gesture that can have a significant impact on the longevity and reliability of your diesel.
By adopting this good practice, you demonstrate your concern for responsible maintenance of your vehicle. Not only do you preserve your investment, but you also contribute to a more sustainable use of your automobile. A small effort for a big benefit in the long term.
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