Hey guys,

Ive got a 94' Civic Sedan with a D15B4 engine, i use to get around 7-9L/100KM (depending on how i drive), but recently fuel consumption has been 10-13L/100KM. The car is nearly due for service, and im hoping after the service everything will be better.

What are the MAIN reasons for a car to have such bad fuel economy???
What parts should i look at to see if they are functioning properly or not??

Thanks in Advance

KaVKaZ