1985 Oldsmobile Delta 88 RoyaleFuel Economy & MPG Ratings
Diesel Large CarsRear-Wheel Drive
City
18
MPG
Highway
26
MPG
Combined
21
MPG
Real-World MPG
Based on 1 owner report via EPA fueleconomy.gov
24.2MPG average+15.4% vs EPA label
EPA combined: 21 MPG · Owner reported avg: 24.2 MPG
Driving mix: City 20% / Highway 80%
Source: EPA fueleconomy.gov “Your MPG” owner submissions. Real-world results vary by driver behavior, conditions, and equipment.
Owner reported MPG for this vehicle averages 24.2 real world MPG based on 1 owner report. EPA combined rating is 21 MPG.
Trim Comparison
Automatic 3-spd
Diesel Diesel
City
18
Hwy
26
Comb
21
Fuel cost: $4,050/yr
Automatic 4-spd
Diesel Diesel
City
18
Hwy
27
Comb
21
Fuel cost: $4,050/yr
Automatic 4-spd
Regular
City
15
Hwy
22
Comb
18
Fuel cost: $3,750/yr
Automatic 4-spd
Regular
City
15
Hwy
22
Comb
18
Fuel cost: $3,750/yr
Automatic 3-spd
Regular
City
15
Hwy
20
Comb
17
Fuel cost: $3,950/yr
Automatic 3-spd
Regular
City
15
Hwy
20
Comb
17
Fuel cost: $3,950/yr
Automatic 3-spd
Regular
City
15
Hwy
20
Comb
17
Fuel cost: $3,950/yr
| Trim | Engine | City | Hwy | Combined | Fuel Cost/yr |
|---|---|---|---|---|---|
| Automatic 3-spd | Diesel Diesel | 18 | 26 | 21 | $4,050 |
| Automatic 4-spd | Diesel Diesel | 18 | 27 | 21 | $4,050 |
| Automatic 4-spd | Regular | 15 | 22 | 18 | $3,750 |
| Automatic 4-spd | Regular | 15 | 22 | 18 | $3,750 |
| Automatic 3-spd | Regular | 15 | 20 | 17 | $3,950 |
| Automatic 3-spd | Regular | 15 | 20 | 17 | $3,950 |
| Automatic 3-spd | Regular | 15 | 20 | 17 | $3,950 |
Annual Fuel Cost
$4,050
Based on gasoline at $3.67/gal, 15,000 miles/year
5-Year Fuel Savings
$-8,250
vs. average new vehicle
EPA Fuel Economy Score: -1/10
GHG Score: -1/10
Environment
- CO₂ Tailpipe Emissions
- 485 g/mile
- Annual Petroleum Consumption
- 17.0 barrels
Specifications
- Engine
- 5.7L 6-cyl
- Transmission
- 3-speed Automatic
- Drivetrain
- RWD
- Body Style
- Sedan
Source: EPA fuel economy data & NHTSA vPIC. Specifications reflect the most common trim configuration.
Engine & Efficiency Details
Source: EPA fueleconomy.gov
- Engine Size
- 5.7L, 8-cylinder
- Induction Type
- (350 V8)
- Fuel Type
- Diesel
Related
Oldsmobile Delta 88 Royale MPG History
See how this model's fuel economy changed by year