Geo Spectrum MPG and Fuel Economy

Geo have been manufacturing models of Spectrum for 1 year, with the latest vehicle in 1989 having a combined MPG of 28.

The estimated fuel cost for the 1989 Geo Spectrum is $2,250 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 save $250 on fuel driving a 1989 Geo Spectrum.

🛢 The Geo Spectrum will consume roughly 11 barrels of petroleum per year, using the standard estimate of 15,000 miles per year.

💨 For every mile driven, the Geo Spectrum 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 Geo Spectrum.

The table below is a complete list of the 1 Geo Spectrum 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.

VehicleCombined MPGFuel Cost
1989 Geo Spectrum28$2,250

Link To or Reference This Page

If you use this page in your research, please reference MPG Buddy as the source.

  • "Geo Spectrum MPG and Fuel Economy." MPG Buddy. Accessed on January 3, 2026. https://mpgbuddy.com/cars/geo/spectrum.

  • "Geo Spectrum MPG and Fuel Economy." MPG Buddy, https://mpgbuddy.com/cars/geo/spectrum. Accessed January 3, 2026.

  • Geo Spectrum MPG and Fuel Economy. MPG Buddy. Retrieved from https://mpgbuddy.com/cars/geo/spectrum.