Ok, I have searched the forums and I just trying to get some clarity here, anything that is labelled as 'adBlue', which I understand is the brand name, should be compatible with a 2019 Range Rover or must it specifically state adherence to 'ISO 22241-1'?

If there are different types of DEF am I correct in thinking that there could be issues if an incompatible type of is used?

What are you guys using and where are you getting it from? I am told ScrewFix is a good source, is that correct? _______________________________________________

2019 4.4 V8 Diesel Range Rover Autobiography, Byron Blue

I got 20 liters from ebay £20. overfinch modified

Genuine ford stuff (omnicraft) is a good price on eBay

https://www.ebay.co.uk/itm/373906744534?mk...media=COPY

In Luxembourg, the Shell garage has an Ad-Blue pump for cars, I have been using that to fill up the last couple of years. It is cheaper than buying their containers of it. I have been happy with it.
I ensure I have a full tank before long trips and have never needed to fill up elsewhere.

I don't know if garages in other places are offering this. SDV8 AB MY 2020
MINI Cooper S Cabrio
Kit: Jaguar XK140 (in progress - the website is link to build)

Using drums of Mannol from eBay, meets the standards and no issues.

Ditto and in 20litre drums it’s the cheapest I’ve found 2021 L405 Vogue SE 4.4 V8 DIESEL ~ #17

Thanks guys, seems like making sure the ISO standard is matched should ensure compatibility.  _______________________________________________

2019 4.4 V8 Diesel Range Rover Autobiography, Byron Blue