Cadillac Deville MPG by Year & Engine (EPA)

EPA fuel-economy ratings for every rated Cadillac Deville model year from 1984 to 2005 — each engine and transmission with its official city, highway and combined figures. Over these years the Deville has been offered with 4.6L 8-cyl, 4.9L 8-cyl, 4.5L 8-cyl, 4.1L 8-cyl, 4.3L 6-cyl, 5.7L 8-cyl engines; the most efficient version is the 1984 (up to 24 MPG combined). Data: U.S. Department of Energy & EPA, fueleconomy.gov; prices are live medians from VehiSales listings.

Cadillac Deville fuel economy by year

YearCombinedEnginesMedian used priceFor sale
2005 18–19 MPG 4.6L 8-cyl
2004 19 MPG 4.6L 8-cyl
2003 19 MPG 4.6L 8-cyl
2002 19 MPG 4.6L 8-cyl
2001 18 MPG 4.6L 8-cyl
2000 19 MPG 4.6L 8-cyl
1999 18 MPG 4.6L 8-cyl
1998 18 MPG 4.6L 8-cyl
1997 18 MPG 4.6L 8-cyl
1996 18 MPG 4.6L 8-cyl
1995 17–18 MPG 4.6L 8-cyl, 4.9L 8-cyl
1994 17–18 MPG 4.6L 8-cyl, 4.9L 8-cyl
1993 17 MPG 4.9L 8-cyl
1992 18 MPG 4.9L 8-cyl
1991 18 MPG 4.9L 8-cyl
1990 17 MPG 4.5L 8-cyl
1989 18 MPG 4.5L 8-cyl
1988 17 MPG 4.5L 8-cyl
1987 18 MPG 4.1L 8-cyl
1986 18 MPG 4.1L 8-cyl
1985 18–23 MPG 4.3L 6-cyl, 4.1L 8-cyl
1984 16–24 MPG 4.3L 6-cyl, 5.7L 8-cyl, 4.1L 8-cyl

2005 Cadillac Deville: engines & MPG

The 2005 Deville was EPA-rated in 2 versions (4.6L 8-cyl), with combined economy from 18 to 19 MPG.

VersionEngineTransmissionFuelCityHwyCombined
DeVille 4.6L 8-cyl Automatic 4-spd Regular 16 24 19 MPG
DeVille 4.6L 8-cyl Automatic 4-spd Regular 15 22 18 MPG

2004 Cadillac Deville: engines & MPG

The 2004 Deville was EPA-rated in 1 version (4.6L 8-cyl), with combined economy of 19 MPG.

VersionEngineTransmissionFuelCityHwyCombined
DeVille 4.6L 8-cyl Automatic 4-spd Regular 16 24 19 MPG

2003 Cadillac Deville: engines & MPG

The 2003 Deville was EPA-rated in 1 version (4.6L 8-cyl), with combined economy of 19 MPG.

VersionEngineTransmissionFuelCityHwyCombined
DeVille 4.6L 8-cyl Automatic 4-spd Regular 16 25 19 MPG

2002 Cadillac Deville: engines & MPG

The 2002 Deville was EPA-rated in 1 version (4.6L 8-cyl), with combined economy of 19 MPG.

VersionEngineTransmissionFuelCityHwyCombined
DeVille 4.6L 8-cyl Automatic 4-spd Regular 16 25 19 MPG

2001 Cadillac Deville: engines & MPG

The 2001 Deville was EPA-rated in 1 version (4.6L 8-cyl), with combined economy of 18 MPG.

VersionEngineTransmissionFuelCityHwyCombined
DeVille 4.6L 8-cyl Automatic 4-spd Premium 15 25 18 MPG

2000 Cadillac Deville: engines & MPG

The 2000 Deville was EPA-rated in 1 version (4.6L 8-cyl), with combined economy of 19 MPG.

VersionEngineTransmissionFuelCityHwyCombined
DeVille 4.6L 8-cyl Automatic 4-spd Premium 15 25 19 MPG

1999 Cadillac Deville: engines & MPG

The 1999 Deville was EPA-rated in 1 version (4.6L 8-cyl), with combined economy of 18 MPG.

VersionEngineTransmissionFuelCityHwyCombined
DeVille 4.6L 8-cyl Automatic 4-spd Premium 15 24 18 MPG

1998 Cadillac Deville: engines & MPG

The 1998 Deville was EPA-rated in 1 version (4.6L 8-cyl), with combined economy of 18 MPG.

VersionEngineTransmissionFuelCityHwyCombined
DeVille 4.6L 8-cyl Automatic 4-spd Regular 15 24 18 MPG

1997 Cadillac Deville: engines & MPG

The 1997 Deville was EPA-rated in 1 version (4.6L 8-cyl), with combined economy of 18 MPG.

VersionEngineTransmissionFuelCityHwyCombined
DeVille 4.6L 8-cyl Automatic 4-spd Premium 15 24 18 MPG

1996 Cadillac Deville: engines & MPG

The 1996 Deville was EPA-rated in 1 version (4.6L 8-cyl), with combined economy of 18 MPG.

VersionEngineTransmissionFuelCityHwyCombined
DeVille 4.6L 8-cyl Automatic 4-spd Premium 15 24 18 MPG

1995 Cadillac Deville: engines & MPG

The 1995 Deville was EPA-rated in 2 versions (4.6L 8-cyl, 4.9L 8-cyl), with combined economy from 17 to 18 MPG.

VersionEngineTransmissionFuelCityHwyCombined
DeVille/Concourse 4.6L 8-cyl Automatic 4-spd Premium 15 23 18 MPG
DeVille/Concourse 4.9L 8-cyl Automatic 4-spd Premium 14 24 17 MPG

1994 Cadillac Deville: engines & MPG

The 1994 Deville was EPA-rated in 2 versions (4.6L 8-cyl, 4.9L 8-cyl), with combined economy from 17 to 18 MPG.

VersionEngineTransmissionFuelCityHwyCombined
DeVille/Concourse 4.6L 8-cyl Automatic 4-spd Premium 15 23 18 MPG
DeVille/Concourse 4.9L 8-cyl Automatic 4-spd Premium 14 24 17 MPG

1993 Cadillac Deville: engines & MPG

The 1993 Deville was EPA-rated in 1 version (4.9L 8-cyl), with combined economy of 17 MPG.

VersionEngineTransmissionFuelCityHwyCombined
DeVille/60 Special 4.9L 8-cyl Automatic 4-spd Premium 15 23 17 MPG

1992 Cadillac Deville: engines & MPG

The 1992 Deville was EPA-rated in 1 version (4.9L 8-cyl), with combined economy of 18 MPG.

VersionEngineTransmissionFuelCityHwyCombined
Fleetwood/DeVille 4.9L 8-cyl Automatic 4-spd Premium 15 23 18 MPG

1991 Cadillac Deville: engines & MPG

The 1991 Deville was EPA-rated in 1 version (4.9L 8-cyl), with combined economy of 18 MPG.

VersionEngineTransmissionFuelCityHwyCombined
Fleetwood/DeVille 4.9L 8-cyl Automatic 4-spd Premium 15 24 18 MPG

1990 Cadillac Deville: engines & MPG

The 1990 Deville was EPA-rated in 1 version (4.5L 8-cyl), with combined economy of 17 MPG.

VersionEngineTransmissionFuelCityHwyCombined
Fleetwood/DeVille 4.5L 8-cyl Automatic 4-spd Premium 15 23 17 MPG

1989 Cadillac Deville: engines & MPG

The 1989 Deville was EPA-rated in 1 version (4.5L 8-cyl), with combined economy of 18 MPG.

VersionEngineTransmissionFuelCityHwyCombined
Fleetwood/DeVille 4.5L 8-cyl Automatic 4-spd Regular 15 23 18 MPG

1988 Cadillac Deville: engines & MPG

The 1988 Deville was EPA-rated in 1 version (4.5L 8-cyl), with combined economy of 17 MPG.

VersionEngineTransmissionFuelCityHwyCombined
DeVille 4.5L 8-cyl Automatic 4-spd Regular 15 22 17 MPG

1987 Cadillac Deville: engines & MPG

The 1987 Deville was EPA-rated in 1 version (4.1L 8-cyl), with combined economy of 18 MPG.

VersionEngineTransmissionFuelCityHwyCombined
Fleetwood/DeVille 4.1L 8-cyl Automatic 4-spd Regular 15 23 18 MPG

1986 Cadillac Deville: engines & MPG

The 1986 Deville was EPA-rated in 1 version (4.1L 8-cyl), with combined economy of 18 MPG.

VersionEngineTransmissionFuelCityHwyCombined
Fleetwood/DeVille 4.1L 8-cyl Automatic 4-spd Regular 15 24 18 MPG

1985 Cadillac Deville: engines & MPG

The 1985 Deville was EPA-rated in 2 versions (4.3L 6-cyl, 4.1L 8-cyl), with combined economy from 18 to 23 MPG.

VersionEngineTransmissionFuelCityHwyCombined
Fleetwood/DeVille (FWD) 4.3L 6-cyl Automatic 4-spd Diesel 19 29 23 MPG
Fleetwood/DeVille (FWD) 4.1L 8-cyl Automatic 4-spd Regular 15 22 18 MPG

1984 Cadillac Deville: engines & MPG

The 1984 Deville was EPA-rated in 3 versions (4.3L 6-cyl, 5.7L 8-cyl, 4.1L 8-cyl), with combined economy from 16 to 24 MPG.

VersionEngineTransmissionFuelCityHwyCombined
Fleetwood/DeVille (FWD) 4.3L 6-cyl Automatic 4-spd Diesel 21 31 24 MPG
Brougham/DeVille (RWD) 5.7L 8-cyl Automatic 4-spd Diesel 18 26 21 MPG
Brougham/DeVille (RWD) 4.1L 8-cyl Automatic 4-spd Regular 14 19 16 MPG

Frequently asked questions

What MPG does a Cadillac Deville get?

Depending on year and engine, EPA combined ratings for the Deville range from 17 to 24 MPG. The most efficient rated version is the 1984 model year.

What engines does the 2005 Cadillac Deville have?

The 2005 Deville was EPA-rated with 4.6L 8-cyl engines — see the 2005 table above for each version's exact city/highway figures.

Does the Cadillac Deville require premium gas?

Some versions do: EPA lists regular gasoline and premium gasoline and diesel depending on year and engine — check your year's table above.

About this data: EPA ratings from the official U.S. DOE/EPA dataset (fueleconomy.gov), as of July 2026; refreshed monthly. Market prices and listing counts are live medians from VehiSales inventory, updated daily. How to cite: “VehiSales Research, Cadillac Deville EPA Fuel Economy by Model Year” with a link to https://vehisales.com/research/fuel-economy/cadillac/deville.

See also: Cadillac Deville hub — live listings, prices & reliability · Most fuel-efficient cars by segment · Model price trends. Media inquiries: [email protected].

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