dont buy from halfords, go to your local motor spares place, get some comma red, and mix it yourself. 2 litres is not enough, my ABF holds around 6 litres. but saying that im not sure where the thermostats are on yours, if its at the top of the block then you wont have to drain all the coolant. so you might get away with less. anyway, halfords is a rip off the staff havent got a clue what they're selling you.