Cadillac ATS-V Fuel Economy (MPG)

Name: Cadillac ATS-V MPG & Fuel Economy
Creator: AutoSpecData
License: https://creativecommons.org/licenses/by/4.0/

What is the real-world gas mileage of a 2018 Cadillac ATS-V?

The 2018 Cadillac ATS-V gets up to 20 MPG combined (17 city / 25 highway) in EPA testing.

Latest model year (2018):

The Cadillac ATS-V gets up to 20 MPG combined (17 city / 25 highway) in the Auto (S8), 6 cyl, 3.6 L trim.

Verifiedfueleconomy.gov · Verified August 11, 2026

Overview MPG Engine Specs Fuel Cost Transmission Drivetrain Vehicle Class Maintenance Dimensions Curb Weight Safety

Cadillac ATS-V MPG — All Years

Year	Trim	Engine	Fuel	City (MPG)	Hwy (MPG)	Combined (MPG)
2018Config 1 of 2	Auto (S8), 6 cyl, 3.6 L	6 3.6L	Premium Gasoline	17	25	20
2018Config 2 of 2	Man 6-spd, 6 cyl, 3.6 L	6 3.6L	Premium Gasoline	16	23	19
2017Config 1 of 2	Auto (S8), 6 cyl, 3.6 L	6 3.6L	Premium Gasoline	17	25	20
2017Config 2 of 2	Man 6-spd, 6 cyl, 3.6 L	6 3.6L	Premium Gasoline	16	23	19
2016Config 1 of 2	Auto (S8), 6 cyl, 3.6 L	6 3.6L	Premium Gasoline	16	24	19
2016Config 2 of 2	Man 6-spd, 6 cyl, 3.6 L	6 3.6L	Premium Gasoline	17	23	19

Data sourced from fueleconomy.gov (U.S. Department of Energy). MPG figures are EPA-tested. Fuel costs are estimates based on average fuel prices and 15,000 miles/year.

Cadillac ATS-V data analysis

How Cadillac ATS-V combined fuel economy varies

Across 6 configurations recorded for the 2016 through 2018 Cadillac ATS-V, combined fuel economy runs from 19 MPG to 20 MPG. The strongest figure belongs to the 2017 Cadillac ATS-V (Auto (S8), 6 cyl, 3.6 L) at 20 MPG, and the weakest to the 2018 car (Man 6-spd, 6 cyl, 3.6 L) at 19 MPG — a spread of 5%. The narrow spread means any year of the Cadillac ATS-V in this table behaves much like the others, so you can shop on price, condition and mileage rather than chasing a particular model year.

What changed for 2018

Average combined fuel economy for the 2018 Cadillac ATS-V is 19.5 MPG, against 19.5 MPG for the 2017 car — it held flat. A carry-over year like this usually means no powertrain or structural change, so an older example is the cheaper way into the same specification.

How to read this Cadillac ATS-V data

This page lists every 2016 through 2018 Cadillac ATS-V record we hold for this measurement — 6 rows in total, one per configuration and model year rather than a single headline figure. Figures are published as the source agency records them: we do not round, average or interpolate missing years, and a year that is absent from the table is a year with no published measurement rather than a zero. Where a manufacturer offered several drivetrains or body styles in the same year, each appears on its own row, because those variants rarely share the same numbers.

Where these Cadillac ATS-V figures come from

Every value on this page is loaded from federal open data — EPA fuel economy submissions, NHTSA vehicle and crash-test records, and manufacturer specification filings — rather than dealer listings or copied editorial content. The Cadillac ATS-V record refreshes as the agencies publish, which typically means new model-year rows appear in the autumn and crash-test results follow through the model year as vehicles are tested. Because certification data is filed per configuration, treat any single headline number for this vehicle with caution: the figure that applies to a specific car depends on its engine, drivetrain, body style and model year, all of which are listed separately above. If a number here disagrees with a brochure, the brochure is usually quoting the best available configuration rather than the one being sold.

Official Factory Specs vs. AutoSpecData Expert Benchmarks

The EPA highway loop never holds interstate speed. Here is what the same engine does when you sit on the cruise control.

Cruise speed	EPA highway spec	AutoSpecData adjusted MPG	Fuel you lose
60 mph	25 MPG	25 MPG	0%
65 mph	25 MPG	23.3 MPG	7%
70 mph	25 MPG	21.7 MPG	13%
75 mph	25 MPG	20.2 MPG	19%
80 mph	25 MPG	18.8 MPG	25%

Our Real-World Speed MPG Adjuster re-scales the Cadillac ATS-V EPA highway result with a quadratic drag term (mpg = hwy ÷ (1 + k·(v² − 60²)/60²), k = 0.55 for trucks, SUVs and vans, 0.42 for cars). Wind, roof racks, and a heavy right foot make it worse, never better.

Frequently Asked Questions About ATS-V MPG

What is the MPG of the Cadillac ATS-V?

The Cadillac ATS-V gets up to 20 MPG combined (17 city / 25 highway) in the 2018 model year. Fuel economy varies by engine and trim — see the full table above for details.

Which Cadillac ATS-V trim has the best fuel economy?

The Auto (S8), 6 cyl, 3.6 L trim offers the best combined fuel economy at 20 MPG. Smaller engines and front-wheel-drive configurations typically achieve the highest MPG.