40/100
2018Midsize CarsRegular

2018 Cadillac CTS AWD

EPA ID: 38916
19
City MPG
22
Combined MPG
22MPG· Average
27
Highway MPG

Fuel Economy Overview

The 2018 Cadillac CTS AWD achieves an EPA-estimated 22 MPG in combined city and highway driving, with 19 MPG in the city and 27 MPG on the highway. Powered by a 3.6L 6-cylinder engine paired with a automatic (s8), this midsize cars features All-Wheel Drive drive.

In terms of environmental impact, the 2018 CTS AWD produces approximately 398 grams of CO2 per mile. This figure is measured under standardized EPA test conditions and represents tailpipe emissions only. For context, the average new vehicle sold in the United States produces approximately 400 grams of CO2 per mile, meaning this CTS AWD performs better than the national average in this regard.

The estimated annual fuel cost for this vehicle is $2,700, based on 15,000 miles of driving per year and current national average fuel prices. Compared to the average new vehicle, you would save $2,750 over a 5-year period. This calculation accounts for differences in fuel consumption efficiency and provides a practical measure of long-term ownership costs attributable to fuel economy.

Energy DNA

Vehicle ClassMidsize Cars
Fuel TypeRegular
Engine3.6L 6-cyl
AspirationNaturally Aspirated
TransmissionAutomatic (S8)
Drive TypeAll-Wheel Drive

Green Scorecard

CO2 Emissions398 g/mi
Start-Stop SystemEquipped
GHG Score4/10
Smog RatingN/A
Est. Annual Cost$2,700
5-Year Cost DeltaSave $2,750

Personalized Commute CalculatorEPA defaults to 55% City / 45% Hwy

55% City45% Highway

Adjust the slider to match your daily driving habits. City driving involves stop-and-go traffic under 45mph, while highway driving represents sustained speeds over 55mph.

Your Real MPG
21.9
Impact vs EPA
+$8
/ year
💨

Aerodynamic Speed Penalty

EPA highway tests average roughly 48 mph. Driving at 75 mph increases aerodynamic drag exponentially. Expect your real-world highway fuel economy to drop by roughly 15-20% at interstate speeds.

5-Year Total Cost of Ownership

Estimated Monthly Cost
$760/mo
Includes estimated depreciation, fuel, insurance, and state fees over 5 years. Does not include loan interest.
15,000 mi
Value Depreciation
Est. value lost over 60 months
$22,400
49.2%
Fuel & Electricity
Based on National Average rates ($3.50/gal)
$11,932
26.2%
Estimated Insurance
Based on vehicle class risk profile
$10,840
23.8%
State Registration Fees
Based on National Average DMV base rates
$400
0.9%
Total 5-Year Cost$45,572

Recall Intelligence

Campaign #25V175000·2025-04-15
critical
Component: STEERING:ELECTRIC POWER ASSIST SYSTEM

General Motors LLC (GM) is recalling certain 2016-2018 Cadillac CTS, 2017-2018 Cadillac ATS, Chevrolet Camaro, and Chevrolet Corvette vehicles. The electric power steering (EPS) assist may fail.

Consequence & Remedy

Consequence: A loss of power steering assist can require greater steering effort, especially at low speeds, increasing the risk of a crash.

Remedy: Dealers will replace the power steering gear assembly, free of charge. Owner notification letters were mailed April 15, 2025. Owners may contact Cadilac customer service at 1-800-333-4223 or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N252497020.

Campaign #19V086000·2019-06-13
critical
Component: STEERING:ELECTRIC POWER ASSIST SYSTEM

General Motors LLC (GM) is recalling certain 2016-2018 Cadillac CTS, and 2017 Cadillac ATS, Chevrolet Camaro, and Chevrolet Corvette vehicles. The electric power steering (EPS) assist system may fail.

Consequence & Remedy

Consequence: Loss of power steering assist would require a higher steering effort, especially at lower speeds, which may increase the risk of a crash.

Remedy: GM will notify owners, and dealers will replace the power steering gear assembly, free of charge. The recall began June 13, 2019. GM' number for this recall is N182182760.

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Looking for comprehensive historical data?

NHTSA FARS (Fatal Crash History) and broader generational safety trends are aggregated at the model level rather than by specific engine configurations. View the complete historical data profile for all Cadillac CTS AWD configurations.

View Model History

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Fuel Cost Analysis

Annual Fuel Cost$2,700
vs. Avg Vehicle (5 yrs)Save $2,750

Based on 15,000 miles/year and current fuel prices.

Efficiency Breakdown

City19 MPG
Highway27 MPG
Combined22 MPG

Estimated Lifetime Carbon Footprint

(Based on 200,000 miles driven)

79.6 metric tons CO₂
Equivalent To:
🌳 99 tree seedlings grown for 10 yrs
✈️ 6.6 cross-country flights/yr

Data Provenance

Data directly from the EPA National Vehicle and Fuel Emissions Laboratory. The combined rating is a weighted average (55% city, 45% highway). For official figures, visit fueleconomy.gov.