Hi I just purchased a 2005 Lincoln LS with almost 32,000 miles after totaling my previous LS a month ago. I love my new LS, drives smoother than my old one but does not get near as good MPG. I'm averaging about 17 MPG right now with about half highway and half city. That's only about 260 miles per tank compared to the 320 or so I would get with my old LS (same v6 engine). I have used Lucas Oil Conditioner and fuel injector cleaner with the last 4 tanks and I have seen a small improvement in my MPG but it's still nothing like it used to be. There are no warning lights or codes coming up so I am not really sure what to do. Any Ford mechanics have with experience with anything like this?
Garrett Walls
I would start with changing all filters
Air, fuel along with an oil and filter change if you have not done so. Servicing the automatic transmission would be something I would do as well.
Even though the vehicle has 32,000 miles I would pull the spark plugs and look them over. Consider replacing.
Then check tire pressures and air up to spec.
You don't state what year. The last year they made one was 2006. So at best it is a 10 year old car that sat a lot. Sitting around isn't always the best for a car. How many miles have YOU put on it?
Report back after that.
<>>>>>>>>>>>Action
Air, fuel along with an oil and filter change if you have not done so. Servicing the automatic transmission would be something I would do as well.
Even though the vehicle has 32,000 miles I would pull the spark plugs and look them over. Consider replacing.
Then check tire pressures and air up to spec.
You don't state what year. The last year they made one was 2006. So at best it is a 10 year old car that sat a lot. Sitting around isn't always the best for a car. How many miles have YOU put on it?
Report back after that.
<>>>>>>>>>>>Action
Welcome and Howdy! to the Forum.
Action got it all right. Change the filters and check the tire air pressures.
Action got it all right. Change the filters and check the tire air pressures.
Some thoughts: Brakes tend to stick in cars that sit a lot. The caliper pistons get frozen in place and the parking/emergency brake cables get stuck. The torque converter lock up solenoid can stick and not let the trans shift into "overdrive". Ditto the above, that is the filter and fluids should be changed if they are the original filters and fluids. Note that brake fluid is hydroscopic, or hygroscopic depending on which organic chemistry book you read, and it absorbs moisture (H2O) which can cause corrosion in the brake calipers and master cylinder and contribute to the aforementioned frozen brakes. Dragging brakes will cause extraordinary fuel consumption. Check the O-2 sensors connections as a lack of signal, or inconsistent signal to the O-2 sensors, will cause the engine control computer to put the engine in the rich fuel mode. As suggested above check the spark plugs for signs of rich running.
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