1990 GMC Sierra HD 4.3L MT 4WD
The 1990 GMC Sierra HD 4.3L MT 4WD is a 4.3-liter V6 with a manual 4-speed and all-wheel drive. It is rated at 15 mpg combined.
EPA fuel-economy estimates are 14 mpg city and 16 mpg highway (15 mpg combined).
| Spec | Value |
|---|---|
| Engine | |
| Engine Type | 4.3L V6 |
| Displacement | 4.3 L |
| Drivetrain | |
| Drive Type | 4-Wheel or All-Wheel Drive |
| Transmission | |
| Transmission | Manual 4-speed |
| 1st Gear | 3.06 |
| 2nd Gear | 1.63 |
| 3rd Gear | 1 |
| 4th Gear | 0.7 |
| Fuel Economy | |
| City | 14 MPG |
| Highway | 16 MPG |
| Combined | 15 MPG |
| Recommended Fuel | Regular Gasoline |