1985 GMC Suburban: C15 Suburban 2WD · 6.2L · RWD · 4-speed automatic · Diesel
One configuration of the 1985 GMC Suburban as listed by our sources. Every figure below carries its source.
| Specification | Value | Source |
|---|---|---|
| Engine | 6.2L 8-cylinder (CA model) | EPA fueleconomy.gov |
| Displacement | 6.2 L | EPA fueleconomy.gov |
| Cylinders | 8 | EPA fueleconomy.gov |
| Fuel type | Diesel | EPA fueleconomy.gov |
| Transmission | 4-speed automatic | EPA fueleconomy.gov |
| Drivetrain | RWD | EPA fueleconomy.gov |
| Combined economy | 18 mpg (13.1 L/100 km) | EPA fueleconomy.gov |
| City economy | 15 mpg (15.7 L/100 km) | EPA fueleconomy.gov |
| Highway economy | 22 mpg (10.7 L/100 km) | EPA fueleconomy.gov |
Provenance & verification
- EPA fueleconomy.gov · US Government public data
Source checked: October 24, 2026
Data verified: October 24, 2026