Hi,





I have a sonata wit 37K miles.



It has a poor mileage approx 13-14 miles / gallon.



Any suggestions appreciated.

 

check for a leak.



also, how are you calculating?



Do you have stock rims (holy crap that would have to be a crazy size to throw it off that far)



so you tow large animals around?



more information.. but really.. go smell / look around for a leak...

 

Well you musta broke somethin eh?



Haha yea fire it up and snoop around for suspects, weird exhaust sound, dripping fuel, anything really. Loud clunks not good

 

When was the last time it had a full tune-up?



spark plugs (and gap), spark plug wires, air filter, fuel filter, oil, oil filter . . . all have an effect. Is there a check engine light?