2004 Cadillac Funeral Coach / Hearse: MPG and fuel economy

This page collects every fuel-economy figure the EPA publishes for the 2004 Cadillac Funeral Coach / Hearse. Below you will find the headline combined, city, and highway MPG, the estimated annual fuel cost at three different driving levels, the tailpipe CO₂ emissions, and a full breakdown of the engine and drivetrain. If you want to know whether this generation got more or less efficient over the years, the year-over-year table further down covers every model year the EPA has rated.

Fuel economy at a glance

These are the EPA's official ratings for the 2004 Cadillac Funeral Coach / Hearse. The numbers come from a standardised laboratory test cycle and are the same figures that appear on the window sticker of every new car. Real-world mileage varies with driving style, weather, fuel quality, and how heavily loaded the car is.

Combined MPG is a 55/45 weighted blend of the city and highway test cycles. The EPA uses it as the single number you can compare across the entire dataset, including hybrids and EVs (which use the equivalent MPGe figure).

How the 2004 Cadillac Funeral Coach / Hearse compares

The 2004 Cadillac Funeral Coach / Hearse returns 15 combined MPG. Cars in the Large Cars class for the same model year average 17.8 MPG, which puts this car behind the class average by about 16%.

The most efficient car in the Large Cars class for the 2004 model year is the Chevrolet Impala at 22 MPG. The bar chart below puts the Cadillac Funeral Coach / Hearse alongside the class best and the class average so you can see the full picture.

For broader context, the average new car of the 2004 model year (across all classes) returns 18.4 MPG. Larger vehicles pull the all-cars average down, so do not use that figure on its own to judge a small car or a hybrid. The full list of the most efficient cars of the 2004 model year is on its own page.

Annual fuel cost across driving patterns

The headline annual fuel cost the EPA publishes assumes 15,000 miles of driving per year and a fuel mix of 55% city and 45% highway. The dollar figure is calculated using the EPA's current reference price for regular gasoline, which is $3.99/gallon. EPA updates that reference periodically rather than tracking live pump prices, so treat it as a window-sticker estimate rather than today's pump number.

The table below scales the EPA's number to three common driving patterns. The combined MPG and the reference fuel price stay constant, only the annual mileage changes. To get a current-prices estimate, take your local gas price and multiply by 1000 gallons (the car's annual consumption at the rated MPG).

Year-over-year MPG for the Cadillac Funeral Coach / Hearse

The EPA has rated the Cadillac Funeral Coach / Hearse across 11 model years, from 1998 Cadillac Funeral Coach / Hearse through 2011 Cadillac Funeral Coach / Hearse. The numbers below are the best combined MPG figure the EPA published for each year, which lets you see when the car was at its most efficient and how recent generations stack up.

Combined MPG has stayed in roughly the same range across the run. The peak rating came with the 1999 Cadillac Funeral Coach / Hearse at 18 MPG.

Compare against other Large Cars for 2004

If you are cross-shopping the 2004 Cadillac Funeral Coach / Hearse, the most useful comparison is against the other cars in the Large Cars class for the same model year. The list below shows the highest-MPG peers, ranked from most to least efficient. Click any of them to open its full page.

The Chevrolet Impala leads this group at 22 MPG, 7 MPG ahead of the 2004 Cadillac Funeral Coach / Hearse.

Specifications

The 2004 Cadillac Funeral Coach / Hearse runs a 4.6-liter 8-cylinder engine paired with a automatic 4-spd, sending power through front-wheel drive.

Engine, transmission, and drivetrain together drive most of the variation in fuel economy across trims. A larger engine moves the car with less effort but burns more fuel. A turbo lets a small engine punch above its weight, often without much MPG penalty. All-wheel drive adds traction and weight, and usually costs a couple of MPG compared with two-wheel drive of the same engine.

Vehicle class

Large Cars

Engine

4.6L 8-cylinder

Transmission

Automatic 4-spd

Drivetrain

Front-Wheel Drive

Fuel type

Regular

Annual petroleum use

19.8 barrels per year

Gas guzzler tax

Applies (federal)

Common questions about the 2004 Cadillac Funeral Coach / Hearse

Quick answers to the questions people most often search for when looking up the 2004 Cadillac Funeral Coach / Hearse.

• Is the 2004 Cadillac Funeral Coach / Hearse fuel efficient?

  Not particularly. The 2004 Cadillac Funeral Coach / Hearse returns 15 combined MPG, which trails the average car in the Large Cars class for the same model year by about 16%.
• What MPG does the 2004 Cadillac Funeral Coach / Hearse get?

  The EPA rates the 2004 Cadillac Funeral Coach / Hearse at 15 combined MPG, 13 MPG in city driving, and 18 MPG on the highway. Real-world numbers depend on your driving style, the weather, and how loaded the car is.
• How much does it cost to fuel a 2004 Cadillac Funeral Coach / Hearse per year?

  The EPA estimates an annual fuel cost of $4,000 for the 2004 Cadillac Funeral Coach / Hearse. That figure assumes 15,000 miles of driving per year, a 55% city and 45% highway split, and the EPA's published average fuel price for the rated fuel grade.
• What fuel does the 2004 Cadillac Funeral Coach / Hearse use?

  The EPA lists the 2004 Cadillac Funeral Coach / Hearse as running on regular gasoline. Using a different grade than the manufacturer specifies can affect fuel economy and engine longevity.
• Has the Cadillac Funeral Coach / Hearse become more fuel efficient over time?

  Combined MPG has stayed close to flat across the run. Both the earliest (1998 Cadillac Funeral Coach / Hearse, 15 MPG) and most recent (2011 Cadillac Funeral Coach / Hearse, 14 MPG) versions sit in the same range.
• How much CO₂ does the 2004 Cadillac Funeral Coach / Hearse emit?

  Tailpipe CO₂ emissions are 592 g/mi. Multiplied across a typical year of driving (15,000 miles) that works out to about 8,887 kilograms of CO₂.
• What is the difference between the city and highway MPG of the 2004 Cadillac Funeral Coach / Hearse?

  City driving returns 13 MPG and highway driving returns 18 MPG, a gap of 5 MPG. The two figures are close enough that the car will hold its rated efficiency well across most driving patterns.
• What engine is in the 2004 Cadillac Funeral Coach / Hearse?

  The 2004 Cadillac Funeral Coach / Hearse has a 4.6-liter 8-cylinder engine.
• What transmission and drivetrain does the 2004 Cadillac Funeral Coach / Hearse have?

  The 2004 Cadillac Funeral Coach / Hearse comes with a automatic 4-spd transmission and front-wheel drive.
• How does the 2004 Cadillac Funeral Coach / Hearse compare to the best car in its class?

  The most efficient car in the Large Cars class for the 2004 model year is the Chevrolet Impala at 22 combined MPG. The Cadillac Funeral Coach / Hearse returns 15 MPG, a gap of 7 MPG. If you are comparing on fuel economy alone, the class leader is worth a look.

Source: U.S. EPA fuel economy dataset. Annual fuel cost figures assume 15,000 miles of driving per year and a 55% city, 45% highway split. Real-world mileage varies with driving conditions, vehicle maintenance, fuel quality, and driver behaviour.