MyFuels AdBlue 10L For SCR Diesel Vehicles
AdBlue is an exhaust fluid, not a fuel additive.
It's stored in a separate reservoir and is topped up via a (usually) blue filler cap located either next to your fuel filler, in the boot or under the bonnet.
Many new diesel cars use a fluid called AdBlue.
If your car uses AdBlue, you'll probably need to top it up at least once between services.