Does anyone know whether Adblue has a lifespan? I bought 30 litres from Aldi at under £9 per 10 litres and now I am worried they might go off. I had to add 3 & 1/2 litres after about 3500 miles and I didn't even know if I had filled it up totally, so I thought I will stock up.
18 months if kept in optimal condition, ie out of direct sunlight and between -6C and 25C. Looks like I have overstocked, but at £9 per 10 litres it was cheap. I have seen them sold at over £20 per 10 litres.