1988 Cadillac Brougham MPG & Specs — Real Fuel Cost
Quick answer
The 1988 Cadillac Brougham gets an EPA-estimated 15/22 MPG (city/highway) and 18 MPG combined, with an estimated $3,400/year fuel cost and 493.722 g/mi CO₂. Engine: 5 L 8-cyl.
The 1988 Cadillac Brougham with the 5-liter 8-cylinder regular gasoline engine returns an EPA-estimated 15 MPG in the city and 22 MPG on the highway, for a combined 18 MPG. This page summarizes the official EPA fuel-economy and emissions data for this configuration.
| Engine | 5 L 8-cyl |
| Transmission | Automatic 4-spd |
| Drive | Rear-Wheel Drive |
| Fuel type | Regular Gasoline |
| Vehicle class | Large Cars |
| MPG — city | 15 |
| MPG — highway | 22 |
| MPG — combined | 18 |
| Annual fuel cost* | $3,400 |
| CO₂ tailpipe | 493.722 g/mi |
| EPA GHG score | — |
How efficient is it?
With a combined 18 MPG, the 1988 Cadillac Brougham sits in the low range for fuel economy. That is roughly 31% thirstier than the typical Large Cars of its era (26 MPG class average) — expect higher fuel bills than class-average alternatives.
Fuel economy and running costs
At about $3,400 per year in fuel (EPA estimate, 15,000 mi/yr), fuel is a major part of the cost of owning the 1988 Cadillac Brougham. Over five years that is roughly $17,000 at today's prices — before insurance, maintenance, and depreciation.
Emissions
The 1988 Cadillac Brougham emits approximately 493.722 grams of CO₂ per mile at the tailpipe. Lower emissions generally track higher fuel economy.
How to read these numbers
EPA figures come from standardized laboratory test cycles and are the same estimates shown on the vehicle's window sticker. Your real-world mileage depends on driving style, conditions, fuel grade, and maintenance. Use combined MPG and annual fuel cost to compare vehicles fairly.