Specifications and capacities for the 2002-2003 Altima
2.5 liter (QR25 - 4 cylinder) and 3.5 liter (VQ35 - V-6).
Engine

2.5 / 2.5 S / 2.5 SL

3.5 SE

Name

QR25
2.5 liter 4 cylinder

VQ35
3.5 liter V-6

Cam Design

DOHC

Orientation

Transverse

Configuration / Cylinders

I4

V6 w/Molybdenum coated pistons

Block / Head Composition

Aluminum/aluminum

Displacement (liters)

2.5L

3.5L

Engine Oil Capacity
Drain and Refill - With oil filter change

4-1/2 quarts

4-1/4 quarts

Engine Oil Capacity
Drain and Refill - Without oil filter change

4-1/4 quarts

4-7/8 quarts

Cooling System
With reservoir

8 quarts

8-5/8 quarts

Manual transmission gear oil

4-7/8 pints

4-7/8 pints
All other fluids refill to proper level according to the instructions
in the "Maintenance and do-it-yourself" section in the Owner's Manual.

Horsepower

175 @ 6,000 RPM

245 @ 5,800 RPM

Torque (lbs/ft)

180 @ 4,000 RPM

246 @ 4,400 RPM

Bore & Stroke (mm)

89.0 x 100.0

95.5 x 81.4

Compression Ratio (:1)

9.5

10.3

Maximum Engine Speed

6,200 RPM

6,600 RPM

Induction System

Sequential multi-point electronic fuel injection

Valvetrain

4-valves-per-cylinder; w/CVTC

Engine Cover

Standard

Engine Mounts (4 mounts per vehicle)  Automatic

Manual

4 fluid filled

4 fluid filled

2 electronically controlled, fluid filled,
1 rubber

3 fluid filled, 1 rubber

Recommended Fuel

Regular unleaded

Premium unleaded

Fuel Tank Capacity (gal.)

20.0

Emissions System

Closed Loop Alpha Control, ECCS

Emission Certification Level

LEV

Exhaust

Variable capacity muffler

Dual exhaust


Electrical

  

Ignition System

Electronic, Nissan Direct Ignition System (NDIS)

Starter

1.4 kW

Alternator

110 Amp.

Battery

12V-55Ah (5HR)

Transmission and Drive System

  

Drive configuration

Front-engine / front-wheel drive

Transmission Type    5-speed manual

                                   4-speed auto w/ overdrive

Standard on 2.5 / 2.5 S / 3.5 SE

Standard on 2.5 SL

Gear Ratio

     1st

     2nd

     3rd

     4th

     5th

     Reverse

   M/T 4-cyl.      M/T V6      A/T 4-cyl.      A/T V6

   3.416              3.153           2.785            2.785

   1.944              1.842           1.545            1.545

   1.258              1.258           1.000            1.000

   0.947              0.947           0.694            0.694

   0.772              0.772               -                    -

   2.272              2.272           3.252            3.002

Final Drive Ratio (:1)

   4.133              3.812           4.087            3.789

Drive Shaft

Carbon Fiber Reinforced Plastic (CFRP)

Helical Limited-Slip Differential

Optional on SE

Brakes

  

Standard

     Front      Type

      Rotor size diameter and thickness (in.)

Vented Disc

11.7” x .94t”

     Rear       Type

      Rotor size diameter and thickness (in.)

Self-adjusting, Solid Disc

11.5” x .35t”

Brake Assist

Standard

Brake Control                                             w/ABS

                                                                    

w/o ABS

Power-assisted with Brake Assist and Electronic Brake force Distribution (EBD)

Power-assisted

Electronic Brake force Distribution (EBD)

Standard

ABS

     Number of Wheels

     Number of Channels

     Number of Sensors

N/A on 2.5; Optional on 2.5 S, 2.5 SL and 3.5 SE

4

4

4

Parking Brake

Hand operated along left side of center console

Steering

2.5 / 2.5 S / 2.5 SL

3.5 SE

Type

Power rack-and-pinion

Power Assisted

Standard

Overall Ratio (:1)

16.1

Turns (lock to lock)

2.8

2.6

Turning Diameter (curb to curb, in feet)

37.4

38.7

Suspension

  

Front

     Stabilizer Bar

Independent strut w/ coil springs

Standard

Rear

     Stabilizer Bar

Multi-Link independent suspension

Standard

Exterior

Wheels & Tires
2.5

2.5 S

2.5 SL

3.5 SE

Wheels

     Steel with bolt-on cover

S

S

-

-

     Aluminum-alloy

-

O

S

S

     6.5JJ x 16

S

S

S

-

     7.0JJ x 17

-

-

-

S

Tires

     P205/65R16 T-rated all-season tires

S

S

S

-

     P215/55R17 H-rated (V6 A/T) or V-rated (V6 M/T) all-season tires

-

-

-

S

Temporary spare tire

S

Dimensions

Exterior (inches)

  

Wheelbase

110.2

Overall length

191.5

Overall width

70.4

Overall height

57.9

Tread width

     Front

     Rear

61.0

61.2

Coefficient of drag (Cd)

0.32

Trunk liftover height

27.6

Interior (inches)

Front

Back

Head room (w/o sunroof)

40.8

37.6

Leg room

43.9

36.4

Hip room

53.0

52.7

Shoulder room

56.7

56.1


Weights
2.5

2.5 S

2.5 SL

3.5 SE

Curb (pounds)
       Front                                   
Manual Transmission

Automatic Transmission

      Rear
Manual Transmission

Automatic Transmission

     Total                                                             
Manual Transmission

Automatic Transmission



1,810

1,858


1,191

1,191


3,001

3,049



1,844

1,893


1,195

1,195


3,039

3,088



-

1,896


-

1,210


-

3,106



1,974

2,023


1,223

1,223


3,197

3,246

Weight distribution (%) Front/Rear                
Manual Transmission

Automatic Transmission

60/40

61/39

61/39

61/39

-

61/39

62/38

62/38

GVWR (pounds)                                            

QR25

VQ35

4,202

4,374

Volume (cubic feet)

  

Passenger compartment

103.2

Cargo

15.6

Total

118.8

Fuel Economy (estimates)

  

City (A/T / M/T)                                              QR25

                                                                        VQ35

23 / 23

19 / 21

Highway (A/T / M/T)                                      QR25

                                                                        VQ35

29 / 29

26 / 26

Classification

Mid-size