Adblue Consumption
 

Hello all.
We collected our Used 2021 XC90 in july, the dealer did a full service before collection, the adblue displayed as full on the sensus screen, 3000 miles on and its dropped to around 50%. We have towed for around 800 miles and rarely use it for short runs etc.

Is this consumption rate normal?

Yep, generally under good conditions a tank full 11 gals iirc lasts about 7000 miles.

Cheers matey, i assumed you meant 11ltrs.

Should i wait until really low or get some fresh in to keep it active..

Indeed,

I'd run down to a quarter of a tank then top up with 5L fills myself, I'm not sure having it full up is beneficial as it has a short shelf life anyway and there's no risk of overfilling it then and potentially causing damage in the system.

It also got very expensive atm even though at one time it was dropping back in price, use a good brand one and not eBay special label stuff as you never know what you're getting with eBay vendors or how long its been sitting about in a huge drum they've decanted from, both ECP and Screwfix do Redex or GreenChem so both of these will be fresh and safe to put in, damp a rag and wring it out first then place it under the adblue filler as this will save your paintwork from splashes etc then once the cap is back on use another clean wet sponge/cloth to clean the general area being careful not to get any water in the fuel filler.

And remember it can take a few miles driving before it registers the top up on the dash so don't panic if it doesn't reset the range immediately.

it's cheaper to top up AdBlue on the motor way services there is a pump for it near the lorry pumps cheaper than supermarkets or Halfords

adblue quality
 

If you can always use the Adblue garage pumps. The retail stuff is of variable quality / age. It can.and has in my XC60 experience, buggered up a pump and injector £££££££££££££.