Hi we have just purchased a 2013 Peugeot 208 1.6 hdi. What I need to know is , does it need dpf fluid or adblue , where do I locate the tank for whichever it uses and can top up myself . The car has come up with a message saying something about having 1500 miles left , There is no adblue filler under the spare wheel in the boot can anyone help thanks.