ENGINE POOR MILEAGE

For 10 Years I Have Gotten 37 Mpg. Had The Spark Plugs Replaced At 142,000 Miles. I Think He Used Denso Plugs. My Mpg Dropped To 32...

Hi, I Have Had The Car Listed Above, Ex Coupe Since May 2018. I Use It To Go To Work Seven Day Straight Days The Two Days Break With...

What Needs To Be Checked If The Consumption Of My Car Is Considerably Higher Than Normal. I Really Need To Increase On Milage Per Liter...

Vehicles The Above Even When It On Park, The Tachometer Keeps Increasing And Decreasing Giving A Sharp Sound. Consume High Fuel Like 30...

Hi, I Have The Vehicle Listed Above (japan Made) I Bought It Second Hand. I Bought It For What The Manufacturer Claims That It Can Make 44...

I Just Bought A 1991 4wd F150 With 117,000 Miles On A 351 Engine, Drove It Home On The Highway, And Averaged 10 Mpg At 65 To 70 Mph. Now...

Engine Performance Problem 1990 Geo Storm 4 Cyl Front Wheel Drive 113000 Miles My Geo Storm Is Supposed To Get 35 Mpg But Only...

I Get 15city And 23 Highway Shood Be 20/30 Dealership Had The Car Several Times They Connected It To Computer Said Nothing Wrong With It...

Hi I Just Purchased This Car With Low Mileage After Totaling My Previous Ls A Month Ago. I Love My New Ls, Drives Smoother Than My Old One...

I Have An 89 Sierra 1500-350 Engine- What Can I Do To Get The Best Possible Fuel Mileage Out Of My Truck-