Why is your car using too much gas?

Answer 1

There's several reasons why this could happen but what is 'Too Much' mean to you, my 940 does 35mpg which I am happy with since it is a large car with a 2.3i engine. 1) When was the last time your car was serviced? A good service normally helps with fuel usage. 2) Are your Ignition leads all working and undamaged? If one isn't working then you'll be misfiring and wasting fuel from that area as the spark plug will not ignite the fuel. 3) How are you driving the car? If you drive at high speeds, use the low gears all the time then this will use up fuel