GMC C15 Suburban 2WD MPG and Fuel Economy
GMC have been manufacturing models of C15 Suburban 2WD for 3 years, with the latest vehicle in 1986 having a combined MPG of 14.
The estimated fuel cost for the 1986 GMC C15 Suburban 2WD is $4,450 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 $10,750 more on fuel driving a 1986 GMC C15 Suburban 2WD.
🛢 The GMC C15 Suburban 2WD will consume roughly 21 barrels of petroleum per year, using the standard estimate of 15,000 miles per year.
💨 For every mile driven, the GMC C15 Suburban 2WD 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 GMC C15 Suburban 2WD.
The table below is a complete list of the 3 GMC C15 Suburban 2WD 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 |
|---|---|---|
| 1986 GMC C15 Suburban 2WD | 14 | $4,450 |
| 1985 GMC C15 Suburban 2WD | 14 | $4,450 |
| 1984 GMC C15 Suburban 2WD | 13 | $4,800 |
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/gmc/c15-suburban-2wd">GMC C15 Suburban 2WD MPG and Fuel Economy</a>
"GMC C15 Suburban 2WD MPG and Fuel Economy." MPG Buddy. Accessed on January 3, 2026. https://mpgbuddy.com/cars/gmc/c15-suburban-2wd.
"GMC C15 Suburban 2WD MPG and Fuel Economy." MPG Buddy, https://mpgbuddy.com/cars/gmc/c15-suburban-2wd. Accessed January 3, 2026.
GMC C15 Suburban 2WD MPG and Fuel Economy. MPG Buddy. Retrieved from https://mpgbuddy.com/cars/gmc/c15-suburban-2wd.