What is diesel exhaust fluid?
will require replacement.
On average, a litre of DEF should last about 1000km. However, usage can be higher depending on how and in what conditions the vehicle is driven. Some vehicles will have an alert system to warn the driver when the DEF tank level drops below a certain percentage, making maintenance easy. It’s also important to note that DEF doesn’t last forever and that generally it has a two-year lifespan from its production date.
Keeping on top of your exhaust fluid levels is crucial because vehicles equipped with an SCR system cannot operate without DEF.
Failing to keep your exhaust fluid levels topped up can compromise your vehicle’s fuel economy and can also cause your car to shut down. So, don’t let your DEF run out or you could find yourself broken down at the roadside — a situation everyone wants to avoid.