I'll try another, Kingston Park deffo £4. Cheers.
Still £2 in my local Tesco half an hour ago, shelf label says offer runs until the end of the month.
Would reccomend millers ecomax instead of this. Lasts 10 tanks full. I occasionally use this if its on offer for £2 as it wont kill me to throw some redex in every couple of months but, millers is what i use every fill up
I usually find them half price in Tesco and Asda. Check after a month or 2. Sometimes they sell engine coolants for half price too which is good deal