Of course they tell you it's a job for the dealer - but it should be possible DIY by buying a small container which will lock onto the tank fitting and when empty, cut the bottom off and use as a funnel for a cheaper bulk container.

DEF/Adblue consumption is 1-3% of the diesel consumption - how often it needs topping up depends on the tank size.

VW's that use Adblue get topped up during 10,000 mile services but hard driving usually requires an interim top-up.

Edited by RT on 09/09/2015 at 22:17

According the Land Rover if you take out a service plan for the Ingenium engine the service interval is 21,000 miles and you get free Adblue top ups in between each service. They reckon on 1 top up between services (based on doing 21k miles) so thats roughly 10,000 miles between top ups.

At least in the Jaguar XE version, the handbook says a litre of AdBlue should last 1000 miles with the tank containing between 9 and 17 litres depending on model. There doesn't appear to be anything stopping you topping up yourself, either.

Inevitably there are going to be people who don't care / don't bother to faff about with AdBlue. Anyone know what happens if it isn't added as per instructions?