LZ4 Buick LZ4

3.5-літровий V6 двигун від Buick, відомий своєю надійністю при належному обслуговуванні, але може мати проблеми з витоками масла.

Brand: Buick Type: Petrol Configuration: V6 Production Years: 2005 - 2009 Production: St. Catharines, Ontario, Canada
16 Brand engines
26 Modifications

Technical Specifications

Engine Displacement 3.5 L (3,498 cc)
Configuration V6
Number of Cylinders 6
Valves per Cylinder 2
Power 211 л.с.
Torque 292 Н*м
Cylinder Bore 94.00 mm
Piston Stroke 84.00 mm
Compression Ratio 9.8:1
Firing Order 1-2-3-4-5-6
Fuel System Sequential Fuel Injection
Aspiration Naturally Aspirated
Intercooler No
Maximum RPM 6,000 rpm
Max Torque RPM 3,200 rpm
Valve Train OHV
Timing Drive Chain
Timing Chain Replacement 250000 or as needed
Block Material Aluminum
Head Material Aluminum
Lubrication System Pressure lubrication
Cooling System Liquid cooling

Additional Information

Engine Family GM High Value engine family
Manufacturing Plant St. Catharines, Ontario, Canada
Predecessor LA1
Successor LF1

Maintenance

Engine Oil Capacity 4.7 L (with filter: 4.9 L)
Recommended Viscosity 5W-30
Oil Standard API SM
Recommended Brands ACDelco, Mobil 1, Valvoline
Oil Change Interval 12 000 km or 12 mo
Oil Filter PF47E
Air Filter A3087C
Replace every 48 000 km
Spark Plugs Type: Iridium
Part number: 41-101
Gap: 1 mm
Quantity: 6 pcs
Replace every 160 000 km
Coolant Capacity 12 L
Coolant Type Dex-Cool (ACDelco)
Coolant Change Interval 240 000 km
Thermostat Opening Temperature 92°C
Operating Temperature 90°C
Max Operating Temperature 110°C
Critical Temperature 125°C
Annual Maintenance Cost 500-800 USD

Reliability

Reliability rating: 8/10

Expected lifespan: 300 000 km

Common problems

Problem Severity Mileage Repair cost
Intake manifold gasket leaks Medium 100000-150000 km $300-600
Oil pressure sensor failure Low 80000-120000 km $100-200

Known defects

  • Potential for intake manifold gasket leaks

Tuning potential

Tuning potential: Low | Max. safe power: 230 hp

Stage Power Torque Method Cost
Stage 1 230 hp 310 Nm ECU remap only
Reliability impact: Minimal 		$400
Stage 2 250 hp 330 Nm - -

Popular modifications

  • Cold air intake
  • Cat-back exhaust system

Tuning limitations

  • Limited aftermarket support
  • Naturally aspirated limits power gains

Cars with the LZ4 engine

This engine was fitted to 13 models

Photo Brand Model Generation Production years
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 Buick Terraza Terraza 2005 - 2007
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 Cadillac CTS CTS 2002 - 2007
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 Chevrolet Epica Epica 2006 - 2012
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 Chevrolet Impala Impala 2006 - 2013
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 Chevrolet Malibu Malibu 2004 - 2008
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 Chevrolet Monte Carlo Monte Carlo 2005 - 2007
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 Pontiac G6 G6 2004 - 2010
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 Pontiac Grand AM Grand AM 1998 - 2005
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 Pontiac Montana Montana II 2006 - 2009
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 Saturn Aura Aura 2007 - 2010
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 Buick GL8 GL8 (GM2900) 2000 - present
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 Chevrolet Omega Omega II (B-body) 1998 - 2007
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 Saturn Relay Relay (GMT201) 2005 - 2007

All modifications (26)

Vehicle Generation Modification Power Gearbox Drive
Buick Terraza Terraza 3.5L V6 200 л.с. 4-Автомат 2WD 200 hp 4-Автомат 2WD
Buick Terraza Terraza 3.5L V6 200 л.с. 4-Автомат 4x4 200 hp 4-Автомат 4x4
Cadillac CTS CTS 2.8L V6 200 л.с. 6-МКП 2WD 200 hp 6-МКП 2WD
Cadillac CTS CTS 2.8L V6 200 л.с. 5-Автомат 2WD 200 hp 5-Автомат 2WD
Cadillac CTS CTS 2.8L V6 200 л.с. 6-Автомат 4x4 200 hp 6-Автомат 4x4
Chevrolet Epica Epica 2.0 143 л.с. 6-МКП 2WD 143 hp 6-МКП 2WD
Chevrolet Epica Epica 2.0 143 л.с. 6-Автомат 2WD 143 hp 6-Автомат 2WD
Chevrolet Epica Epica 2.0 143 л.с. 5-Автомат 4x4 143 hp 5-Автомат 4x4
Chevrolet Impala Impala 3.5L V6 211 л.с. 6-МКП 2WD 211 hp 6-МКП 2WD
Chevrolet Impala Impala 3.5L V6 211 л.с. 6-Автомат 2WD 211 hp 6-Автомат 2WD
Chevrolet Malibu Malibu 3.5L V6 217 л.с. 6-МКП 2WD 217 hp 6-МКП 2WD
Chevrolet Malibu Malibu 3.5L V6 217 л.с. 5-Автомат 2WD 217 hp 5-Автомат 2WD
Chevrolet Monte Carlo Monte Carlo 3.5L V6 200 л.с. 4-ступ. автомат 2WD 200 hp 4-ступ. автомат 2WD
Chevrolet Monte Carlo Monte Carlo 3.5L V6 200 л.с. 4-ступ. автомат 4x4 200 hp 4-ступ. автомат 4x4
Pontiac G6 G6 3.5L V6 219 л.с. 6-МКП 2WD 219 hp 6-МКП 2WD
Pontiac G6 G6 3.5L V6 219 л.с. 6-Автомат 2WD 219 hp 6-Автомат 2WD
Pontiac Grand AM Grand AM 3.6L V6 200 л.с. 6-Автомат 2WD 200 hp 6-Автомат 2WD
Pontiac Grand AM Grand AM 3.6L V6 200 л.с. 5-Автомат 2WD 200 hp 5-Автомат 2WD
Pontiac Montana Montana II 3.5L V6 200 л.с. 4-Автомат 2WD 200 hp 4-Автомат 2WD
Pontiac Montana Montana II 3.5L V6 200 л.с. 6-Автомат 2WD 200 hp 6-Автомат 2WD
Saturn Aura Aura 3.6L V6 252 л.с. 6-ступ. Автомат 2WD 252 hp 6-ступ. Автомат 2WD
Saturn Aura Aura 3.6L V6 252 л.с. 6-ступ. Автомат 4x4 252 hp 6-ступ. Автомат 4x4
Buick GL8 GL8 (GM2900) 3.0 V6 240 л.с. 6-Автомат 2WD 240 hp 6-Автомат 2WD
Chevrolet Omega Omega II (B-body) 3.6 V6 261 л.с. 6-МКП 2WD 261 hp 6-МКП 2WD
Saturn Relay Relay (GMT201) 3.5L V6 200 л.с. 4-Автомат 2WD 200 hp 4-Автомат 2WD
Saturn Relay Relay (GMT201) 3.5L V6 200 л.с. 4-Автомат 4x4 200 hp 4-Автомат 4x4

Interesting Facts

  • The LZ4 was part of GM's High Value engine family, known for its reliability and smooth performance.

Applications

Total produced: unknown

Vehicle Generation Years Power Markets
Buick LaCrosse First Generation 2005-2009 211hp North America
Chevrolet Impala Ninth Generation 2006-2009 211hp North America

Compatible transmissions: 4-speed Automatic

Drive types: FWD

Fuel Economy

Fuel Type Petrol 87
Octane Rating Minimum: 87 | Recommended: 87
Consumption (City) 13.1 L/100km
Consumption (Highway) 8.7 L/100km
Consumption (Combined) 10.9 L/100km
Real Consumption 11.5 L/100km
Fuel Tank Capacity 64 L
Range 587 km
Cost per 100 km 10-12 USD

Emissions Standards

Emission Standard Euro 4
CO₂ Emissions 255 g/km
Particulate Filter (DPF) Absent
AdBlue Not Required

Comparison with competitors

Engine Brand Displacement Power Torque
3.5L SOHC V6 Honda 3,471 cc 244 hp 325 Nm
3.5L V6 Toyota 3,456 cc 268 hp 336 Nm

Pros

  • Smooth and reliable performance
  • Good low-end torque

Cons

  • Lower power output compared to competitors
  • Limited tuning potential