?My mpg has dipped dramatically after putting 18's on. I used to get around 22-26 mpg in nose to tail traffic before now I get anywhere between 16-22. Normal town driving was usually around the 25mpg and now it's averaging a diabolical 19mpg on similar journeys.
Don't even ask about mpg when it's driven hard... Me thinks it's time to revert back to the Monty's.?