2009 Mercury Grand Marquis MPG

Based on data from 4 vehicles, 254 fuel-ups and 59,105 miles of driving, the 2009 Mercury Grand Marquis gets a combined Avg MPG of 19.06 with a 0.38 MPG margin of error.

Below you can see a distribution of the fuel-ups with 4 outliers (1.55%) removed.

Following shows the average MPG of each of the 4 vehicles in the system.

• My Grand Marquis

  2009 Mercury Grand Marquis LS 4.6L V8 FLEX Automatic 4 Speed
  Added Feb 2025 • 5 Fuel-ups

  Property of kenqv

• 23.7 Avg MPG

• My Grand Marquis

  2009 Mercury Grand Marquis LS 4.6L V8 FLEX Automatic 4 Speed
  Added Aug 2022 • 59 Fuel-ups

  Property of LoneStarHedgehog

• 17.3 Avg MPG

• Silver Cloud

  2009 Mercury Grand Marquis LS 4.6L V8 FLEX Automatic 4 Speed Sedan
  Added Jan 2020 • 202 Fuel-ups

  Property of MikeB60

• 19.8 Avg MPG

• Grand Marquis

  2009 Mercury Grand Marquis LS 4.6L V8 FLEX Automatic 4 Speed
  Added Apr 2019 • 3 Fuel-ups

  Property of leftyclick

• 44.5 Avg MPG