I recently bought a used 2013 Mazda 6 with full service history from Mazda dealers. It's a petrol sedan with 146,000 km on clock. In city driving I'm getting fuel consumption around 10.4-10.6 L/100 km, and I'm concerned about it. Is it normal? Over a long highway drive of 700 km I got 6.6-7 L/100 km. Moreover, I hear lot of suspension noise as well. Could you please let me know any background of this car or what could be the issue, what should I do?
It’s a little higher than I would expect. It should be around 8.7 L/100 km in city driving and 5.3 on a country run. It would be worth having it checked by a mechanic or dealer to see if there is something amiss with it. It’s hard to say what the suspension noise might be, without actually hearing it I would only be guessing. Have a suspension specialist check it for you.