MPGTerminal
38/100
2015Midsize CarsPremium

2015 Infiniti Q70

EPA ID: 35714
18
City MPG
21
Combined MPG
21MPG· Average
26
Highway MPG

Fuel Economy Overview

The 2015 Infiniti Q70 achieves an EPA-estimated 21 MPG in combined city and highway driving, with 18 MPG in the city and 26 MPG on the highway. Powered by a 3.7L 6-cylinder engine paired with a automatic (s7), this midsize cars features Rear-Wheel Drive drive.

In terms of environmental impact, the 2015 Q70 produces approximately 429 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 Q70 has higher-than-average emissions in this regard.

The estimated annual fuel cost for this vehicle is $3,300, based on 15,000 miles of driving per year and current national average fuel prices. Compared to the average new vehicle, you would save $5,750 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 TypePremium
Engine3.7L 6-cyl
AspirationNaturally Aspirated
TransmissionAutomatic (S7)
Drive TypeRear-Wheel Drive

Green Scorecard

CO2 Emissions429 g/mi
Start-Stop SystemNot Equipped
GHG Score5/10
Smog RatingN/A
Est. Annual Cost$3,300
5-Year Cost DeltaSave $5,750

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
20.9
Impact vs EPA
+$13
/ 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
$769/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
48.5%
Fuel & Electricity
Based on National Average rates ($3.50/gal)
$12,500
27.1%
Estimated Insurance
Based on vehicle class risk profile
$10,840
23.5%
State Registration Fees
Based on National Average DMV base rates
$400
0.9%
Total 5-Year Cost$46,140

Recall Intelligence

Campaign #24V470000·2024-08-13
critical
Component: POWER TRAIN:DRIVELINE:DRIVESHAFT

Nissan North America, Inc. (INFINITI) is recalling certain 2011-2013 M56, 2012-2013 M35 Hybrid, 2014-2018 Q50, Q70 Hybrid, 2014-2019 Q70, and 2015-2019 Q70L two-wheel drive vehicles. The driveshaft can fatigue and break.

Consequence & Remedy

Consequence: A broken driveshaft can result in a loss of drive power, or a vehicle roll away when the vehicle is in park without the parking brake applied. Both scenarios can increase the risk of a crash.

Remedy: Dealers will replace the driveshaft, free of charge. Owner notification letters were mailed August 13, 2024. Owners may contact INFINITI's customer service at 1-800-662-6200. INFINITI's numbers for this recall are R24A5 and R24A7.

Campaign #14V583000·2014-11-10
critical
Component: VEHICLE SPEED CONTROL:ACCELERATOR PEDAL

Nissan North America, Inc. (Nissan) is recalling certain model year 2013-2014 Infiniti M35 hybrid vehicles manufactured April 7, 2012, to September 9, 2013, 2014 Infiniti Q50 hybrid vehicles manufactured December 10, 2012, to July 15, 2014, and 2014-2015 Infiniti Q70 hybrid vehicles manufactured April 9, 2010, to May 7, 2014. Due to a software error, In the affected vehicles, if the signal is lost from one of the two throttle position sensors (TPS), the engine control module (ECM) will go into a fail-safe mode, partially closing the throttle chamber. Should the lost signal be restored, the throttle chamber may open, regardless of the position signal from the TPS.

Consequence & Remedy

Consequence: The vehicle may gradually accelerate due to the throttle chamber reopening. This unexpected acceleration may increase the risk of a crash.

Remedy: Nissan will notify owners, and dealers will reprogram the ECM, free of charge. The recall began on November 10, 2014. Owners may contact Nissan customer service at 1-800-647-7261.

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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 Infiniti Q70 configurations.

View Model History

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Fuel Cost Analysis

Annual Fuel Cost$3,300
vs. Avg Vehicle (5 yrs)Save $5,750

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

Efficiency Breakdown

City18 MPG
Highway26 MPG
Combined21 MPG

Estimated Lifetime Carbon Footprint

(Based on 200,000 miles driven)

85.8 metric tons CO₂
Equivalent To:
🌳 106 tree seedlings grown for 10 yrs
✈️ 7.1 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.