Pontiac G5 GT MPG and Fuel Economy
Pontiac have been manufacturing models of G5 GT for 2 years, with the latest vehicle in 2010 having a combined MPG of 26.
The estimated fuel cost for the 2010 Pontiac G5 GT is $2,400 per year.
Government regulators have estimated that value based on 15,000 miles driven per year, using regular gasoline, and a split of 55% city driving and 45% highway driving.
💵 Compared to an average vehicle over 5 years, you will spend $500 more on fuel driving a 2010 Pontiac G5 GT.
🛢 The Pontiac G5 GT will consume roughly 11 barrels of petroleum per year, using the standard estimate of 15,000 miles per year.
💨 For every mile driven, the Pontiac G5 GT will emit -1 grams of CO2, which is about -15,000 grams of CO2 per year.
🌳 To help you understand the impact of this, a normal tree will absorb around 21,000 grams of CO2 per year. This means that roughly 1 tree would be needed to offset emissions from the Pontiac G5 GT.
The table below is a complete list of the 2 Pontiac G5 GT fuel efficiency specifications we have data for.
Click any vehicle link to see a more detailed breakdown of the car, miles per gallon, emissions, and more.
| Vehicle | Combined MPG | Fuel Cost |
|---|---|---|
| 2010 Pontiac G5 GT | 26 | $2,400 |
| 2009 Pontiac G5 GT | 29 | $2,150 |
Link To or Reference This Page
If you use this page in your research, please reference MPG Buddy as the source.
<a href="https://mpgbuddy.com/cars/pontiac/g5-gt">Pontiac G5 GT MPG and Fuel Economy</a>
"Pontiac G5 GT MPG and Fuel Economy." MPG Buddy. Accessed on January 3, 2026. https://mpgbuddy.com/cars/pontiac/g5-gt.
"Pontiac G5 GT MPG and Fuel Economy." MPG Buddy, https://mpgbuddy.com/cars/pontiac/g5-gt. Accessed January 3, 2026.
Pontiac G5 GT MPG and Fuel Economy. MPG Buddy. Retrieved from https://mpgbuddy.com/cars/pontiac/g5-gt.