45/100
2026Midsize CarsPremium

2026 Cadillac CT5

EPA ID: 49284
22
City MPG
26
Combined MPG
26MPG· Average
31
Highway MPG

Fuel Economy Overview

The 2026 Cadillac CT5 achieves an EPA-estimated 26 MPG in combined city and highway driving, with 22 MPG in the city and 31 MPG on the highway. Powered by a 2L 4-cylinder turbocharged engine paired with a automatic (s10), this midsize cars features Rear-Wheel Drive drive.

In terms of environmental impact, the 2026 CT5 produces approximately 346 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 CT5 performs better than the national average in this regard.

The estimated annual fuel cost for this vehicle is $2,650, based on 15,000 miles of driving per year and current national average fuel prices. Compared to the average new vehicle, you would save $2,500 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 TypePremium
Engine2L 4-cyl
AspirationTurbocharged
TransmissionAutomatic (S10)
Drive TypeRear-Wheel Drive

Green Scorecard

CO2 Emissions346 g/mi
Start-Stop SystemEquipped
GHG Score5/10
Smog RatingN/A
Est. Annual Cost$2,650
5-Year Cost DeltaSave $2,500

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
25.3
Impact vs EPA
+$55
/ 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
$729/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
51.2%
Fuel & Electricity
Based on National Average rates ($3.50/gal)
$10,096
23.1%
Estimated Insurance
Based on vehicle class risk profile
$10,840
24.8%
State Registration Fees
Based on National Average DMV base rates
$400
0.9%
Total 5-Year Cost$43,736

Recall Intelligence

Campaign #26V114000·2026-04-16
critical
Component: EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

General Motors has decided that certain 2027 Chevrolet Bolt EV, 2025-2026 Cadillac OPTIQ, Chevrolet Colorado, Equinox EV, GMC Canyon, 2026 Buick Enclave, Envision, Cadillac CT5, Escalade, Escalade ESV, Escalade IQ, Escalade IQL, LYRIQ, VISTIQ, Chevrolet Blazer EV, Corvette Convertible, Corvette Coupe, Corvette Convertible E-Ray, Equinox, Silverado 1500, 2500, 3500, Silverado EV, Suburban 1500, Tahoe, Traverse, GMC Acadia, Hummer EV Pickup, Hummer EV SUV, Sierra 1500, 2500, 3500, Sierra EV, Terrain, Yukon, and Yukon XL vehicles. The radio may not have been set to the correct status to download the electronic owner's manual during production. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 208, “Occupant Protection.”

Consequence & Remedy

Consequence: Without an owner's manual to consult, owners may not know how to safely use and operate the vehicle, increasing the risk of injury in a crash.

Remedy: Dealers will reset the vehicle radio, which will facilitate automatic download of the electronic owner’s manual, free of charge. Owner notification letters were mailed April 16, 2026. Owners may contact GM customer service at 1-866-467-9700, Chevrolet customer service at 1-800-222-1020 or Cadillac customer service at 1-800-333-4223. The manufacturer's number for this recall is N252540430. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov on February 26, 2026.

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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 CT5 configurations.

View Model History

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Fuel Cost Analysis

Annual Fuel Cost$2,650
vs. Avg Vehicle (5 yrs)Save $2,500

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

Efficiency Breakdown

City22 MPG
Highway31 MPG
Combined26 MPG

Estimated Lifetime Carbon Footprint

(Based on 200,000 miles driven)

69.2 metric tons CO₂
Equivalent To:
🌳 86 tree seedlings grown for 10 yrs
✈️ 5.8 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.