33/100

1997Midsize CarsPremium

1997 Infiniti Q45

EPA ID: 13570

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City MPG

Combined MPG

18MPG· Below Avg

Highway MPG

Fuel Economy Overview

The 1997 Infiniti Q45 achieves an EPA-estimated 18 MPG in combined city and highway driving, with 16 MPG in the city and 22 MPG on the highway. Powered by a 4.1L 8-cylinder engine paired with a automatic 4-spd, this midsize cars features Rear-Wheel Drive drive.

In terms of environmental impact, the 1997 Q45 produces approximately 494 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 Q45 has higher-than-average emissions in this regard.

The estimated annual fuel cost for this vehicle is $3,850, based on 15,000 miles of driving per year and current national average fuel prices. Compared to the average new vehicle, you would save $8,500 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

Engine4.1L 8-cyl

AspirationNaturally Aspirated

TransmissionAutomatic 4-spd

Drive TypeRear-Wheel Drive

Green Scorecard

CO2 Emissions494 g/mi

Start-Stop SystemNot Equipped

GHG Score-1/10

Smog RatingN/A

Est. Annual Cost$3,850

5-Year Cost DeltaSave $8,500

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

18.2

Impact vs EPA

$-38

/ 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

$804/mo

Includes estimated depreciation, fuel, insurance, and state fees over 5 years. Does not include loan interest.

Annual Mileage15,000 mi

Value Depreciation

Est. value lost over 60 months

$22,400

46.5%

Fuel & Electricity

Based on National Average rates ($3.50/gal)

$14,583

30.2%

Estimated Insurance

Based on vehicle class risk profile

$10,840

22.5%

State Registration Fees

Based on National Average DMV base rates

$400

0.8%

Total 5-Year Cost$48,223

Recall Intelligence

Campaign #02V171000·2002-07-29

advisory

Component: ELECTRICAL SYSTEM:ALTERNATOR/GENERATOR/REGULATOR

ON CERTAIN PASSENGER VEHICLES, ONE OF THE DIODES USED IN THE ALTERNATOR MAY HAVE BEEN DAMAGED WHEN BUILT. THIS CAN EVENTUALLY RESULT IN FAILURE OF THE DIODE AND AN ELECTRICAL SHORT WHICH COULD MELT THE PLASTIC HOUSING.

Consequence & Remedy

Consequence: IF THE COMBUSTIBLE GAS EMITTED BY THE MELTING PLASTIC DOES NOT DISPERSE DUE TO AIR FLOW THROUGH THE ENGINE COMPARTMENT, IT COULD IGNITE AND IN TURN IGNITE THE FAN GUIDE IN THE ALTERNATOR.

Remedy: DEALERS WILL REPLACE THE ALTERNATOR. OWNER NOTIFICATION BEGAN JULY 29, 2002. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT NISSAN AT 1-800-647-7261 OR INFINITI AT 1-800-662-6200.

Campaign #99V129000·1999-07-06

advisory

Component: ELECTRICAL SYSTEM:ALTERNATOR/GENERATOR/REGULATOR

VEHICLE DESCRIPTION: PASSENGER VEHICLES. ONE OF THE DIODES USED IN THE ALTERNATOR MAY HAVE BEEN DAMAGED WHEN BUILT. THIS CAN EVENTUALLY RESULT IN FAILURE OF THE DIODE AND AN ELECTRICAL SHORT WHICH COULD MELT THE PLASTIC HOUSING.

Consequence & Remedy

Remedy: DEALERS WILL REPLACE THE ALTERNATOR.

Campaign #98V325000·1999-02-16

moderate

Component: POWER TRAIN:AUTOMATIC TRANSMISSION

VEHICLE DESRIPTION: PASSENGER VEHICLES. THE IGNITION KEY CAN BE REMOVED WHEN THE ENGINE IS TURNED OFF WITHOUT PLACING THE TRANSMISSION SHIFT LEVER IN THE "PARK" POSITION. THIS DOES NOT COMPLY WITH THE REQUIREMENTS OF FMVSS NO. 102, "TRANSMISSION SHIFT LEVER SEQUENCE, STARTER INTERLOCK, AND TRANSMISSION BRAKING EFFECT."

Consequence & Remedy

(Based on 200,000 miles driven)

98.7 metric tons CO₂

Equivalent To:

🌳 122 tree seedlings grown for 10 yrs

✈️ 8.2 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.