1990 Infiniti Q45
US · Midsize Cars
The 1990 Infiniti Q45 is listed in the US market with gasoline power. Every figure below carries the source it came from, and anything our sources do not publish is left out rather than estimated.
- Engine
- 4.5L 8-cylinder (GUZZLER) (FFS)
- Transmission
- 4-speed automatic
- Drivetrain
- RWD
- Fuel
- Gasoline
- Economy
- 17 mpg (13.8 L/100 km) combined
Key Figures
Engine
| Specification | Value | Source |
|---|---|---|
| Engine | 4.5L 8-cylinder (GUZZLER) (FFS) | |
| Displacement | 4.5 L | |
| Cylinders | 8 | |
| Fuel type | Gasoline | EPA fueleconomy.gov |
Transmission and drivetrain
| Specification | Value | Source |
|---|---|---|
| Transmission | Automatic | EPA fueleconomy.gov |
| Gears | 4 | |
| Drivetrain | RWD | EPA fueleconomy.gov |
Fuel economy and range
| Specification | Value | Source |
|---|---|---|
| Combined | 17 mpg (13.8 L/100 km) | EPA fueleconomy.gov |
| City | 15 mpg (15.7 L/100 km) | |
| Highway | 20 mpg (11.8 L/100 km) |
Our sources do not publish these for this vehicle: Aspiration, Power, Torque, Electric range, Battery capacity. We leave them out instead of estimating.
Trims and configurations
1 configuration listed by our sources. Engines, drivetrains and fuel economy can differ between them.
Recalls
NHTSA lists 1 recall campaign for this model year. Last checked November 7, 2026.
95V103002: SEAT BELTS:FRONT:BUCKLE ASSEMBLY
THE FRONT SAFETY BELT BUCKLE RELEASE BUTTONS CAN BREAK. THESE RED PLASTIC RELEASE BUTTONS ARE MARKED "PRESS." IF A BUTTON BREAKS, PIECES CAN FALL INTO THE BUCKLE ASSEMBLY CAUSING THE BUCKLE TO OPERATE IMPROPERLY.
Remedy: OWNERS SHOULD PROMPTLY CHECK THE CONDITION AND OPERATION OF BOTH FRONT SAFETY BELT BUCKLES AND CAREFULLY INSPECT THE RED RELEASE BUTTON FOR ANY BREAKS OR CRACKS. THEY SHOULD ENSURE THAT BOTH BUCKLES ARE OPERATING PROPERLY BY INSERTING…
Reported May 24, 1995. View on NHTSA
Data sources
- EPA fueleconomy.gov · retrieved October 21, 2026 · US Government public data
- NHTSA vPIC · retrieved October 21, 2026 · US Government public data
Source checked: October 21, 2026
Data verified: October 21, 2026
Specifications can vary by market, trim, configuration and production date. Confirm with the manufacturer before buying parts or making safety decisions. Report an error.
Related vehicles
- 1991 Infiniti Q45
Gasoline
4.5L 8-cylinder ((GUZZLER) (FFS)) · RWD
17 mpg (13.8 L/100 km) to 15 mpg (15.7 L/100 km)
Frequently asked questions
What engine does the 1990 Infiniti Q45 have?
4.5L 8-cylinder ((GUZZLER) (FFS)). Engines can differ by trim, so check the trim list below.
What is the fuel economy of the 1990 Infiniti Q45?
Combined fuel economy is 17 mpg (13.8 L/100 km), as published by the source shown in the specification table.
Is the 1990 Infiniti Q45 front-wheel, rear-wheel or all-wheel drive?
Drivetrain: RWD.
Are there recalls for the 1990 Infiniti Q45?
NHTSA lists 1 recall campaign for this model year (last checked November 7, 2026). Details are in the Recalls section.