1987 Chevrolet R20 (C20) Pickup 2WDFuel Economy & MPG Ratings
Diesel Standard Pickup TrucksRear-Wheel Drive
City
16
MPG
Highway
18
MPG
Combined
17
MPG
Trim Comparison
Manual 4-spd
Diesel Diesel
City
16
Hwy
18
Comb
17
Fuel cost: $5,000/yr
Automatic 4-spd
Diesel Diesel
City
15
Hwy
20
Comb
17
Fuel cost: $5,000/yr
Manual 4-spd
Regular
City
14
Hwy
16
Comb
15
Fuel cost: $4,500/yr
Manual 4-spd
Regular
City
14
Hwy
17
Comb
15
Fuel cost: $4,500/yr
Automatic 4-spd
Regular
City
14
Hwy
17
Comb
15
Fuel cost: $4,500/yr
Automatic 3-spd
Regular
City
14
Hwy
15
Comb
14
Fuel cost: $4,800/yr
Automatic 4-spd
Regular
City
12
Hwy
16
Comb
14
Fuel cost: $4,800/yr
Automatic 4-spd
Regular
City
12
Hwy
17
Comb
14
Fuel cost: $4,800/yr
Automatic 3-spd
Regular
City
13
Hwy
15
Comb
14
Fuel cost: $4,800/yr
Manual 4-spd
Regular
City
12
Hwy
15
Comb
13
Fuel cost: $5,200/yr
| Trim | Engine | City | Hwy | Combined | Fuel Cost/yr |
|---|---|---|---|---|---|
| Manual 4-spd | Diesel Diesel | 16 | 18 | 17 | $5,000 |
| Automatic 4-spd | Diesel Diesel | 15 | 20 | 17 | $5,000 |
| Manual 4-spd | Regular | 14 | 16 | 15 | $4,500 |
| Manual 4-spd | Regular | 14 | 17 | 15 | $4,500 |
| Automatic 4-spd | Regular | 14 | 17 | 15 | $4,500 |
| Automatic 3-spd | Regular | 14 | 15 | 14 | $4,800 |
| Automatic 4-spd | Regular | 12 | 16 | 14 | $4,800 |
| Automatic 4-spd | Regular | 12 | 17 | 14 | $4,800 |
| Automatic 3-spd | Regular | 13 | 15 | 14 | $4,800 |
| Manual 4-spd | Regular | 12 | 15 | 13 | $5,200 |
Annual Fuel Cost
$5,000
Based on gasoline at $3.67/gal, 15,000 miles/year
5-Year Fuel Savings
$-13,000
vs. average new vehicle
EPA Fuel Economy Score: -1/10
GHG Score: -1/10
Environment
- CO₂ Tailpipe Emissions
- 599 g/mile
- Annual Petroleum Consumption
- 21.0 barrels
Specifications
- Engine
- 6.2L 6-cyl
- Transmission
- 3-speed Automatic
- Drivetrain
- RWD
- Body Style
- Pickup Truck
- GVWR
- Class 2-3 (6,001–10,000 lbs)
Source: EPA fuel economy data & NHTSA vPIC. Specifications reflect the most common trim configuration.
Engine & Efficiency Details
Source: EPA fueleconomy.gov
- Engine Size
- 6.2L, 8-cylinder
- Induction Type
- (NO-CAT)
- Fuel Type
- Diesel
Annual Fuel Cost by State
Prices as of week ending May 18, 2026 · Source: EIA
National AvgEPA default
$4.490/gal$3,962/yr
California
$5.957/gal$5,256/yr
Texas
$3.888/gal$3,431/yr
Florida
$4.136/gal$3,649/yr
New York
$4.522/gal$3,990/yr
Ohio
$4.510/gal$3,979/yr
Washington
$5.591/gal$4,933/yr
Colorado
$4.618/gal$4,075/yr
Minnesota
$4.344/gal$3,833/yr
Massachusetts
$4.448/gal$3,925/yr
| State | Gas Price | Annual Cost | vs. National Avg |
|---|---|---|---|
| National AvgEPA default | $4.490/gal | $3,962/yr | — |
| California | $5.957/gal | $5,256/yrHIGHEST | +$1,294 |
| Texas | $3.888/gal | $3,431/yrLOWEST | $-531 |
| Florida | $4.136/gal | $3,649/yr | $-313 |
| New York | $4.522/gal | $3,990/yr | +$28 |
| Ohio | $4.510/gal | $3,979/yr | +$17 |
| Washington | $5.591/gal | $4,933/yr | +$971 |
| Colorado | $4.618/gal | $4,075/yr | +$113 |
| Minnesota | $4.344/gal | $3,833/yr | $-129 |
| Massachusetts | $4.448/gal | $3,925/yr | $-37 |
Calculated at 15,000 miles/year (EPA standard assumption) using 17 MPG combined. Regular gasoline prices. Actual costs vary.
Related
Chevrolet R20 (C20) Pickup 2WD MPG History
See how this model's fuel economy changed by year