MERCURY ENGINE POOR MILEAGE

I Had The Fuel Pump Replaced, And Gas Milage Dropped 3 Miles Per Gal. Eng Analizer Say Mixture Is To Rich. Mech Reset Fuel Air Mix, But...

(2000 Mercury Grand Marquis) Fuel Filter, Spark Plugs, Upstream O2 Sensors, New Mass Air Flow Sensor, Air Filter, At Fluid And Filter Change...

Recently Purchased This Sable And It Seems To Run Fine But It Really Sucks Down The Fuel

58.000 Miles, Car Does Not Use Oil. Trnsmission Seems Free - Car Coasts Freely. We Drive Slowly - 55 - 60 Mph. Mileage Is About...

I Have A '93 Capri With 182000 Miles. I Pu Tit In A Ditch Not Too Long Ago And Came Inches From Destroying My Oil Cooler, But Didn't Do...

As Earlier Stated Starts Easy Runs & Idles Nicely But Seems To Get Bad Gas Mileage. (No Leaks In Gas Tank) Ha Ha I Also Have No Messages...

I Have A 97 Mercury Sable Gs That Has Been Not Running Right. When Its Idling Its Rough, When You Step On The Gas There Seems To Be A Lack...

At About 135,000 Miles, Gas Mileage Started To Drop From The Usual 26 Mpg. I Have A 19 Gallon Gas Tank And Was Getting 494 Miles Per Tank...

I Just Purchased A 1997 Mercury Sable With A 3.0 Liter Engine & 175,000 Km. (100,000 Miles Approx.). It Idles Fine & Starts Up Easily...

I Think My Computor Is Not Giving Acurate Figures For Average Fuel Mpg. How Do I Find Out With Out Costing Me Top $. And If It Isn't, How...