hi, new to the clio seen, only have had my clio 3days RB 182 , just wondering how does the mpg work on computer? when i click it to mpg it says mpg and a little picture of a car i think, just the mpg only reads 28.4 and thats its lol , doesnt seem to move well it went up from 28.3 to .4 lol, just wondered if theres another button i have to press to make it change to the current mpg ect , or is the little computer just not working ? thanks adam