ENGINE POOR MILEAGE

I Have Very High Miles On My Car Because I Travel A Lot(279564 To Be Exact). Whats The Best Way That I Can Keep My Car Running @ Top...

Car Listed Above Is An Sv Model. I'm Getting Half Of The Gas Mileage I Use To Get, The Last Tank Fill Up Before This One, I Got About...

I Have The Car Listed Above Gts. I Changed The Spark Plugs, And The Tips Were Light Brown Indicating They Were Fine. I Have Very Bad Fuel...

After I Fill Up My Tank, The Digital Gas Gauge Only Shows 167 Miles Of Range. It Used To Be 310 +/- 15 Miles. The Analog Gauge Always...

Truck Is Burning A Lot Of Fuel. Changed The Air Filter, Spark Plugs, Injectors, And Did An Oil Change. Checking Engine Light Is On And...

Pats Didn't Recognize Key Then Mileage And Mpg Info Was Dashed Out. Checking Fuses And Only Some Are Getting Power In Engine Compartment...

Hello, My Car Is An E Class 220d W213, It Has A Problem With Two Things: The First Is That It Loses 1 Liter Of Antifreeze Every 100 Km...

I Have Been Experiencing Issues With My Car Running Lean. When I Bought The Car, It Had A Misfire. So, I Replaced Spark Plugs...

3 Nozzles Are Working But The Other 3 Nozzles Aren't Working Even Changing The Nozzles But Still Aren't Working.

Noticed Friday Night I Had 80-miles Until Empty On Estimated Mileage Until Empty. Then The Car Sat 3 Days And Started It Up And It Averaged...