Why Is My Car Using Too Much Gas in Marble Falls?
- Tyler Ellis
- Oct 8
- 3 min read
Watching the fuel gauge drop faster than usual is frustrating and expensive. Many drivers ask us, “Why Is My Car Using Too Much Gas in Marble Falls?”, and at Marble Falls Auto Center we see a mix of maintenance issues and driving conditions behind the problem. The good news: most MPG losses are fixable once you pinpoint the cause.
What Causes Poor Fuel Economy?
Underinflated or Worn TiresLow pressure increases rolling resistance and heat. Feathered/cupped tread from misalignment also steals MPG.
Dirty Air Filter or MAF IssuesA clogged filter or contaminated mass airflow (MAF) sensor skews the air-fuel mix, making the engine run rich.
Faulty Oxygen Sensors / Aging Catalytic ConverterSlow O2 sensors and restricted cats confuse fuel trims, wasting gas and sometimes triggering a check engine light.
Stuck-Open ThermostatIf the engine never reaches proper temperature, it stays in a “warm-up” strategy and burns more fuel.
Dragging Brakes or Wheel BearingsA seized caliper, swollen brake hose, or failing bearing creates constant drag you’ll feel as sluggishness and poor MPG.
Old Spark Plugs / Ignition ProblemsMisfires and weak spark reduce efficiency and can damage the catalyst over time.
Fuel System ProblemsLeaky injectors, weak pump, low pressure, or a dirty fuel filter upset delivery and atomization.
Extra Weight, Roof Racks, Short-Trip DrivingUnnecessary cargo, aerodynamic drag, and repeated cold starts (never reaching full temp) all pile onto your MPG bill.
If you’ve been wondering, “Why Is My Car Using Too Much Gas in Marble Falls?”, one—or several—of these culprits is usually to blame.
How We Fix High Fuel Consumption
At Marble Falls Auto Center, we start with a targeted MPG diagnostic instead of guesswork:
Scan data review: short/long-term fuel trims, O2 switching, MAF grams/sec, coolant temp, misfire counters.
Mechanical checks: tire pressures/tread, brake drag and bearing play, alignment concerns, thermostat operation.
Fuel system tests: pressure/volume, injector balance, filter condition, and EVAP integrity if indicated.
Ignition & air path: plug wear/gap, coil performance, air filter restriction, intake leaks.
Typical solutions include correcting pressures/alignment, cleaning or replacing the air filter and MAF, replacing slow O2 sensors, fixing draggy brakes, installing a proper thermostat, updating spark plugs/coils, and addressing fuel delivery faults. You can start with an MPG checkup here: Marble Falls Auto Center.
Why Act Now?
Running rich doesn’t just waste money—it overheats the catalytic converter, dilutes engine oil, and accelerates carbon buildup. Fixing MPG early protects expensive components and restores drivability. The next time you think, “Why Is My Car Using Too Much Gas in Marble Falls?”, remember that quick diagnostics usually pay for themselves at the pump.
Pro Tips to Stretch Your MPG (Today)
Set tire pressures cold to the door-placard spec; recheck with big temperature swings.
Remove unneeded cargo/roof racks; they add rolling and wind resistance.
Use quality fuel and keep up with oil changes—fresh oil reduces friction.
Combine short trips; warm engines are dramatically more efficient.
If the check engine light is on, don’t wait—small sensor issues cause big fuel waste.
Get an MPG Diagnostic in Marble Falls
Still asking, “Why Is My Car Using Too Much Gas in Marble Falls?” Let our ASE-certified team find—and fix—the reason fast. Schedule your appointment and get your miles (and money) back.
Related Posts:
Comments