Question about 2005 Ford Escape

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Fuel economy slipping

Have been getting a steady 20.1 MPG with my Escape. 9 months ago after I had the oil changed, it started dropping, and now I am down to 17.3 MPG. Just had the oil and air filter changed, and had the coolant flushed and changed. What could be the problem? Runs fine otherwise, don't smell gas, doesn't seem to have any transmission slippage....

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  • icemom29 Feb 02, 2009

    This is my 2nd winter with the Escape, and last winter I had no problem, and it started when the weather was still nice. Just changed the air filter and oil again. Any other thoughts?

  • Anonymous Apr 27, 2009

    I notices this problem when I used the wrong weight of oil. escape called for 5w-20 and I accidently put 10w-30. I was quick to fluch twice and then replace with 5w-20 and things were just like usual. I have not notice decrease in my 2005 escape since then.


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If you have had the car for mor than two years you should have the spark plugs and wiers changed. In other words a full tune up.

A decrease in fuel economy could be caused by a wheel baring draging, the wheel alignment, a pooly inflated tier, how agressive you are behind the wheel, and worn steering or suspension parts.

Please contact me if your problem presists after tune up.


Posted on Feb 02, 2009

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It could be a combination of things. It maybe time for a tune up (you didn't mention how many miles you have now),it could and most likely is caused by winter blend fuel and the colder temps.
Winter blend fuel contains oxygenates which are fuel additives (alcohols and ethers) that contain oxygen which can boost gasoline's octane quality, enhance combustion, and reduce exhaust emissions. They are also known to reduce fuel mileage usually around 3 to 5% but sometimes it can be more depending on driving habits.
If you are driving in cold temp and are taking alot of short trips where engine never has a chance to get totally warmed up it will use more fuel.

Posted on Feb 02, 2009

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If your in cooler climate where heater & defroster are used regularily, that uses more fuel, as well as tends to thicken oil, plus require more fuel at start-up etc, your mileage probably would drop, but maybe they changed grade of oil from what you were usuing. A lot of things come into play here as well as wheel alignment, tires pressures, air filter quality etc.

Posted on Feb 02, 2009

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