I have a 1998 Taurus 3.0 V6 with just over 117,000 miles. Within the past week I have changed the spark plugs and the oil, following the recommended manufacturer's specs. Over the past month or so, I have noticed a slight decrease in gas mileage (which was previously above 20mpg average) and I was beginning to think maybe it was the gauge in the gas tank giving weird readings. I filled up again yesterday and figured my mileage dropped about 4mpg to about 15mpg. I cannot smell any gas fumes, there are no wet places anywhere in the engine or on the ground under the engine, and the the hoses look fine. Where could the gas be going? I am not really even sure where to start, and being a college student, I am reluctant to take it to a mechanic mainly because of cost.
Thursday, September 13th, 2007 AT 11:47 AM