Against 344 other V8 cars rated 2009–2011, the DTS beats their 16.1 mpg average by 1.9 mpg, about $252 a year.
Every Cadillac DTS engine, compared
The Cadillac DTS was rated in a single specification, so its gas mileage does not vary by version — only by model year. Yearly cost assumes 12,000 miles at $3.20 a gallon.
| Engine | Combined | City / Highway | Years | Fuel per year |
|---|---|---|---|---|
| 4.6L 8-cyl | 15 / 22.8 | 2006–2011 | $2,133 |
What that actually costs
Against its rivals in the same model years, the Chrysler 300 gets 20.3 mpg, the Hyundai Sonata 28.8 mpg and the Chevrolet Impala 22.3 mpg, next to 18 mpg for the 2011 DTS. The DTS costs the most of them to run: $800 a year more than the Hyundai Sonata.
| Measure | Value |
|---|---|
| Cost per mile (2011) | $0.178 |
| Fuel per year | $2,133 |
| Fuel over five years | $10,665 |
| Against other V8 cars, 2009–2011 | −$252 a year |
| EPA's own estimate | $3,450 a year |
City or highway — who is this car for
The 2011 Cadillac DTS gives up 8 mpg in town: 23 on the highway against 15 in the city, $890 a year if every mile were city driving.
| Measure | Value | Reading |
|---|---|---|
| City (2011) | 15 mpg | $2,560 a year if you only drive in town |
| Highway | 23 mpg | $1,670 a year if you mostly commute |
| Gap | +8 mpg (53%) | Wide — this car dislikes traffic |
How the DTS changed over the years
Combined figure across the 6 model years the DTS was rated in, all of them at 18 mpg.
| Model year | Combined | City / Highway | Engines offered | Fuel per year |
|---|---|---|---|---|
| 2011 | 15 / 23 | 1 | $2,133 | |
| 2010 | 15 / 22 | 1 | $2,133 | |
| 2009 | 15 / 23 | 1 | $2,133 | |
| 2008 | 15 / 23 | 1 | $2,133 | |
| 2007 | 15 / 23 | 1 | $2,133 | |
| 2006 | 15 / 23 | 1 | $2,133 |
MPG is a number. Dollars per year is the answer.
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How we count
This page rests on 6 EPA ratings of the Cadillac DTS — 1 engine across 2006–2011. The mileage is EPA's laboratory figure, unchanged; the yearly bill is ours, at 12,000 miles and $3.20 a gallon, against EPA's own estimate of $3,450. Full method.
Frequently asked questions
What mpg does the 2011 Cadillac DTS get?
18 mpg combined, 15 city and 23 highway, per EPA. Across every year since 2006 the DTS has averaged 18 mpg.
Is the 2011 DTS more efficient than the 2010?
About the same: 18 against 18 mpg combined.
Does the DTS get better gas mileage than the Chrysler 300?
No: 18 mpg for the 2011 DTS against 20.3 for the 2012 Chrysler 300, about $241 a year more to run.
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