How is it used?
- AdBlue is only applicable to diesel engines and is an emissions reduction technology that complements existing DPF technology.
- Diesel cars fitted with a DPF may not necessarily feature an AdBlue tank. However, cars with an AdBlue tank always feature a DPF as part of the overall emission control solution.
- AdBlue and DPF warning lights are separate and will illuminate independently of each other.
How much AdBlue will my vehicle use?
- AdBlue is added to fuel appropriate to consumption. Usage is therefore affected by driving style, journey type, engine and vehicle load, and environmental conditions.
- AdBlue can be purchased from automotive retailers, garages, dealerships, some fuel stations or online. As a general guide, Halfords sells a 10 litre container of AdBlue for around £12.50.
- AdBlue filler location varies between manufacturer and model. Typical locations include the boot, next to the fuel filler, or under the bonnet.
- The size of the AdBlue tank fitted to vehicles varies between manufacturers and models, so therefore the interval between top-ups will vary.
- Based on conservative estimates, AdBlue may require topping up every 5,000 to 8,000 miles although this will fluctuate based on manufacturer, model, and driving style.
How do I top up AdBlue?
- Some manufacturers may provide AdBlue free of charge in certain circumstances such as part of a routine service. But it is highly unlikely that refills during routine serving alone will maintain AdBlue levels sufficiently.
- Cars with variable servicing require particular attention as they are virtually guaranteed to require an AdBlue top up before the initial service.
- When AdBlue is running low, a series of warnings will be given via the driver information system. As an example, Audi models display a countdown from 1,500 miles before a required refill.
- It is vital these warnings are acted upon promptly. If AdBlue falls below a pre-determined level, the car will continue on reduced power. Once it is stopped it will not restart until sufficient AdBlue is added. Should this occur at the side of the road, you will be charged for recovery.
- Taking Audi as an example, a minimum of 5.7 litres of AdBlue is required to restart the vehicle, although this level varies between manufacturers.
- AdBlue must never be added to fuel. If AdBlue is added via the fuel filler, you should not start the vehicle and immediately call the appropriate emergency support number.
- If you accidentally add fuel to the AdBlue tank, the same applies: do not start the vehicle and immediately call the appropriate emergency support number.
Source: Fleet Alliance