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2009 Buick Lucerne - Specs

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2009 Buick Lucerne

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Visit Buick for more information on the Buick Enclave.

Engine Specs
Transmission Specs

Exterior Dimensions
Interior Dimensions

Capacities



Dimensions and capacities are in inches unless otherwise specified.

Model Lineup
Engine
Transmission
3.9L V-6 (LGD/LZ9)
4.6L V-8 (L37)
4-spd auto (4T65)
4-spd auto (4T80)
Lucerne CX
Standard
Standard
Lucerne CXL
Standard
Standard
Lucerne Super
Standard
Standard

Engines

3.9L V-6 (LGD/LZ9)

4.6L V-8 (L37)

Application

std. on CX, CXL

std on Super

Type

3.9L V-6

4.6L V-8

Displacement (ci / cc)

237 / 3880

279 / 4565

Bore & stroke (in / mm)

3.90 x 3.31 / 99 x 84

3.66 x 3.331 / 93 x 84

Block material

cast iron

cast aluminum with iron-bore liners

Cylinder head material

cast aluminum

aluminum

Valvetrain

overhead valve, 2 valves per cylinder, continuously variable valve timing

dual overhead cam, 4 valves per cylinder

Ignition system

electronic direct ignition system (DIS) and electronic spark plug control (ESC) and extended life platinum-tipped spark plugs

electronic direct ignition system (DIS) and electronic spark plug control (ESC) and extended life platinum-tipped spark plugs

Fuel delivery

sequential fuel injection

sequential fuel injection

Compression ratio

9.8:1

10:1

Horsepower (hp / kW @ rpm)

227 / 169 @ 5700*

292 / 218 @ 6300*

Torque (lb.-ft. / Nm @ rpm)

237 / 321 @ 3200*

288 / 390 @ 4500*

Recommended fuel

regular unleaded or E85 ethanol

premium recommended but not required

Maximum engine speed (rpm)

6400

6700

Emissions controls

close-coupled catalytic converter, Quick Sync 58X ignition, returnless fuel rail, fast-response O² sensor

evaporative system, single catalytic converter, exhaust gas recirculation, positive crankcase ventilation, Air Injection Reaction (AIR), ULEV II compliant

Fuel economy (city / hwy)

17 / 26 (gas)

15 / 22

13 / 20 (E85)


Transmissions

Hydra-Matic 4T65

Hydra-Matic 4T80

Type

electronically controlled 4-speed automatic with overdrive and torque converter clutch

electronically controlled 4-speed automatic with overdrive and electronically controlled torque converter clutch

Application

3.9L V-6

4.6L V-8

Gear ratios (:1)

   1st

2.92

2.96

   2nd

1.56

1.63

   3rd

1.00

1.00

   4th

0.71

0.68

Reverse

2.38

2.13

Final drive ratio

2.93

3.11 (CXL & CXS)

3.71 (Super)

Chassis / Suspension

2009 Buick Lucerne

Front suspension

CX & CXL
independent MacPherson strut coil-over-spring; twin-tube dampers
CXS & Super
monotube
CX, CXL, CXS
29-mm tubular stabilizer bar
Super

33.3-mm tubular stabilizer bar

Rear suspension

CX
multi-link independent with coil springs and semi trailing arm, twin-tube airlift control dampers
CXL, CXS & Super
monotube airlift control
CX, CXL, CXS & Super

18-mm tubular stabilizer bar

Steering type

hydraulic variable ratio rack-and-pinion (CX, CXL w/V-6)

magnetic variable assist rack-and-pinion on CXS and Super; Delphi premium steering gear on Super

Steering ratio

CX, CXL
15.1:1
Super

14.2:1

Steering wheel turns, lock-to-lock: (est.)

CX, CXL
2.8
Super

2.1

Turning diameter,
curb to curb (ft / m)

with 17-inch wheels
42.2 / 12.9
with 18-inch wheels

44 / 13.4


Brakes
2009 Buicke Enclave

Type

4-wheel disc anti-lock with traction control, power assist, vented front, solid rear

Rotor diameter x thickness (in / mm)

Front CX, CXL
11.9 x 1.18 / 303 x 30
Super
12.7 x 1.18 / 323 x 30
Rear All models

11.5 x 0.47 / 292 x 12


Wheels / Tires
2009 Buick Lucerne

Wheel size and type

CX, CXL

17-inch painted aluminum wheels (chrome plated optional) with embossed center-position tri-shield emblem on center hub

Super

18-inch painted aluminum wheels (chrome plated optional) with embossed center-position tri-shield emblem on center hub

Tires

CX, CXL

P235/55R17 Michelin all-season steel-belted, radial ply

Super

P245/50R18 Bridgestone Turanza EL400 02 steel-belted, radial-ply


Exterior Dimensions
2009 Buick Lucerne

Wheelbase (in / mm)

115.6 / 2936

Overall length (in / mm)

203.2 / 5161

Overall width (in / mm)

73.8 / 1874

Overall height (in / mm)

58 / 1473

Track (in / mm)

Front with 17" wheels
63.0 / 1601
with 18" wheels
62.6 / 1591
Rear with 17" wheels
62.5 / 1587
with 18" wheels

62.1 / 1577

Curb weight (lb / kg)

CX
3764 / 1707
CXL
3969 / 1800
Super

4004 / 1816


Interior
2009 Buick Lucerne

Seating capacity (front / rear)

5 / 6 (2 or 3 front / 3 rear); 5-pass. only on Super

Headroom (in / mm)

Front
39.5 / 1004
Rear

37.6 / 957

Legroom (in / mm)

Front
42.5 / 1079
Rear

41 / 1051

Shoulder room (in / mm)

Front
58.0 / 1473
Rear

57.0 / 1453

Hip room (in / mm)

Front
56.7 / 1424
Rear

57.0 / 1445


Capacities
2009 Buick Lucerne

EPA passenger volume (cu ft / L)

108 / 3058

EPA interior volume (cu ft / L)

125 / 3540

Cargo volume (cu ft / L)

17 / 481

Trailer towing maximum (lb / kg)

1000 / 454 (est. for all models)

Fuel tank (gal / L)

18.5 / 70

Engine oil (qt / L)

V-6
4.5 / 4.3
V-8

7.5 / 7.1

Cooling system (qt / L)

V-6
11.6 / 11
V-8

12.7 / 12

*SAE certified. A new voluntary power and torque certification procedure developed by the SAE Engine Test Code committee was approved March 31, 2005. This procedure (J2723) ensures fair, accurate ratings for horsepower and torque by allowing manufacturers to certify their engines through third-party witness testing. GM was the first auto manufacturer to begin using the procedure and expects to use it for all newly rated engines in the future.

Note: Information shown is current at time of publication.

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