1990 Infiniti Q45 Base
_V8_front_4.13.19.jpg)
Unverified
All photo credits
- Photo: 1995 Infiniti Q45 (4.5) V8 front 4.13.19 by Kevauto, CC BY-SA 4.0, via Wikimedia Commons
- Photo: 1993 Infiniti Q45 in Beige, front left by Mr.choppers, CC BY-SA 3.0, via Wikimedia Commons
- Photo: 1995 Infiniti Q45 (4.5) V8 rear 4.13.19 by Kevauto, CC BY-SA 4.0, via Wikimedia Commons
- Photo: 1994 Infiniti Q45 (29380535620) by Riley from Christchurch, New Zealand, CC BY 2.0, via Wikimedia Commons
The 1990 Infiniti Q45 Base is a 278-hp 4.5-liter V8 with a 4-speed automatic and rear-wheel drive. It starts at $38,500 MSRP and is rated at 17 mpg combined.
It makes 278 horsepower at 6,000 rpm and 292 lb-ft of torque at 4000 rpm. EPA fuel-economy estimates are 15 mpg city and 20 mpg highway (17 mpg combined).
The Q45 measures 199.8 inches long on a 113.2-inch wheelbase and has a curb weight of 4,039 lb.
| Spec | Value |
|---|---|
| Vehicle | |
| Body Type | Sedan |
| Powertrain | Gas |
| Price | |
| MSRP | $38,500 ($95,735 *) |
| Engine | |
| Engine Type | 4.5L DOHC V8 (VH45DE) |
| Displacement | 4.5 L |
| Horsepower | 278 hp @ 6,000 rpm |
| Torque | 292 lb-ft @ 4000 rpm |
| Valvetrain | DOHC, 4 valves/cyl (32 total), variable valve timing |
| Bore and Stroke | 93.0 x 82.7 mm |
| Compression Ratio | 10.2:1 |
| Injection Type | Electronic multiport fuel injection |
| Drivetrain | |
| Drive Type | Rear-wheel drive |
| Differential Type | Viscous limited-slip differential (R200V) |
| Transmission | |
| Transmission | 4-speed automatic (RE4R03A) |
| 1st Gear | 2.784 |
| 2nd Gear | 1.544 |
| 3rd Gear | 1 |
| 4th Gear | 0.694 |
| Final Drive | 3.538 |
| Fuel Economy | |
| City | 15 MPG |
| Highway | 20 MPG |
| Combined | 17 MPG |
| Recommended Fuel | Premium unleaded (91 octane) |
| Tank Capacity | 22.5 gal |
| Suspension | |
| Front Suspension | Independent, upper/lower control arms (wishbone), coil springs, stabilizer bar |
| Rear Suspension | Independent multi-link, coil springs |
| Front Stabilizer Bar | Standard diameter |
| Rear Stabilizer Bar | None |
| Brakes | |
| Front Brake Calipers | Single-piston floating caliper (CL28VF) |
| Front Brake Disc | 11.02 in (280 mm), ventilated |
| Rear Brake Disc | 11.50 in (292 mm), solid |
| Tires & Wheels | |
| Wheels Front | 15 x 6.5 in |
| Wheels Rear | 15 x 6.5 in |
| Tires Front | 215/65R15 |
| Tires Rear | 215/65R15 |
| Dimensions & Weight | |
| Length | 199.8 in |
| Width | 71.9 in |
| Height | 56.3 in |
| Wheelbase | 113.2 in |
| Front Track | 61.8 in |
| Rear Track | 61.8 in |
| Cargo Volume | 14.8 ft³ |
| Curb Weight | 4,039 lbs |
| Weight Distribution (F/R) | 57.2% / 42.8% |
| Interior | |
| Headroom Front | 38.2 in |
| Headroom Rear | 36.3 in |
| Legroom Front | 43.9 in |
| Legroom Rear | 32 in |
Similar cars
Rivals to the 1990 Infiniti Q45 Base with similar size, power and price from around the same years.
Safety & Recalls
NCAP safety ratings
Not crash-tested by NHTSA for this model year.
Recalls
1 recall on file with NHTSA for the 1990 Infiniti Q45. Not every recall applies to every trim or VIN — check yours at nhtsa.gov/recalls.
May 24, 1995 · 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.
Consequence: THE SAFETY BELTS WOULD NOT PROVIDE ADEQUATE PROTECTION TO AN OCCUPANT IN A VEHICLE CRASH.
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 EACH LATCH PLATE INTO ITS BUCKLE, TUGGING ON THE BELT TO MAKE SURE THE LATCH IS SECURELY LOCKED, AND THEN PRESSING THE RELEASE BUTTON. THE LATCH PLATE SHOULD POP OUT OF THE BUCKLE WHEN THE BUTTON IS PRESSED. IF EITHER RELEASE BUTTON SHOWS A SIGN OF BREAKING OR CRACKING OR IF EITHER BUCKLE FAILS TO OPERATE PROPERLY, OWNERS SHOULD PROMPTLY CONTACT THEIR AUTHORIZED DEALER TO SCHEDULE AN APPOINTMENT TO HAVE THE BUCKLE REPLACED OR REPAIRED FREE OF CHARGE.
NHTSA campaign 95V103002
29 owner complaints to NHTSA for the 1990 Infiniti Q45
Owner Complaints
29 owner complaints filed with NHTSA for the 1990 Infiniti Q45 (1 mention a crash). See all on nhtsa.gov
| Power Train | 15 |
| Engine And Engine Cooling | 3 |
| Visibility | 3 |
| Electrical System | 2 |
| Hydraulic | 2 |
| Service Brakes | 2 |
Complaints are unverified reports submitted to NHTSA by owners. They cover the whole model year, not a specific trim, and a count alone doesn't show how common a problem is.
Source: US National Highway Traffic Safety Administration (nhtsa.gov), matched as 1990 INFINITI Q45. US-market vehicles only; data cached for up to 7 days.