Contour Enthusiasts Group Archives Forums General Troubleshooting BAD MILAGE

I HAVE A 95 2.5 24 VALVE ENG AND CAN SOMEBODY TELL ME WHY I AM GETTING SUCH POOR GAS MILLAGE AND HOW TO FIX THE CAR RUNS A LITTLE FAST AT START-UP BUT COMES DOWN IN ABOUT A MIN NOT TO HOT IDEL SPEED BUT CLOSE CAN SOMEONE POINT ME IN THE RIGHT DIRECTION THANKS

First off please remove Caps Lock.




Secondly lots of things can cause bad mpg.

Do you live in a state that has winter right now, if so winter blend gas is part of the reason and your car runs in open loop longer to in the morning so it runs richer.

Now actual things to repalce/check, spark plugs/wires, air and fuel filter, PCV valve, O2 sensors are a big one, lots of things, you can write a list a mile long, those are the basic things to begin with though.

I had the same problem with a 96 Mystique GS V6 auto, then the water pump blew and the mileage went back to normal after the new pump was put in. FYI when the car was new, highway mileage was 36-40 MPG (imperial gallons, the highway were I live in Canada has a 110 km/hr speed limit), then dropped to high 20s. After the water pump was replaced, it went up to 34-36. Good luck. (here is my original post) Orginal Post