Z20NET GM Z20NET

Модульний 4-циліндровий двигун з турбонаддувом, відомий своєю потужністю та економічністю, але вимагає регулярного обслуговування для підтримки надійності.

Brand: General Motors Type: Petrol Configuration: Inline-4 Production Years: 2002 - 2011 Production: Kaiserslautern, Germany
3 Brand engines
6 Modifications

Technical Specifications

Engine Displacement 2.0 L (1,998 cc)
Configuration Inline-4
Number of Cylinders 4
Valves per Cylinder 4
Power 175 - 200 л.с.
Torque 265 - 300 Н*м
Cylinder Bore 86.00 mm
Piston Stroke 86.00 mm
Compression Ratio 8.8:1
Firing Order 1-3-4-2
Fuel System Multi-point Fuel Injection
Aspiration Turbocharged
Turbocharger Single turbocharger
Intercooler Yes
Maximum RPM 6,500 rpm
Max Torque RPM 2,500 rpm
Valve Train DOHC
Timing Drive Chain
Timing Chain Replacement 250000 or as needed
Block Material Cast Iron
Head Material Aluminum
Lubrication System Pressure lubrication
Cooling System Liquid cooling

Additional Information

Engine Family GM Family II
Manufacturing Plant Kaiserslautern, Germany

Maintenance

Engine Oil Capacity 5.4 L (with filter: 5.7 L)
Recommended Viscosity 5W-30
Oil Standard ACEA A3/B4
Recommended Brands Mobil 1, Castrol Edge, Shell Helix
Oil Change Interval 15 000 km or 12 mo
Oil Filter 93185674
Air Filter 90529847
Replace every 60 000 km
Spark Plugs Type: Iridium
Part number: 9199038
Gap: 0.8 mm
Quantity: 4 pcs
Replace every 60 000 km
Coolant Capacity 7 L
Coolant Type G12 (GM Dex-Cool)
Coolant Change Interval 240 000 km
Thermostat Opening Temperature 92°C
Operating Temperature 90°C
Max Operating Temperature 110°C
Critical Temperature 120°C
Annual Maintenance Cost 700-1000 USD

Reliability

Reliability rating: 7/10

Expected lifespan: 250 000 km

Common problems

Problem Severity Mileage Repair cost
Turbocharger failure High 100000-150000 km $1500-2000
Timing chain tensioner wear Medium 120000-180000 km $1000-1500

Known defects

  • Oil sludge buildup in early models

Warranty extensions

  • No known warranty extensions

Tuning potential

Tuning potential: Medium | Max. safe power: 320 hp

Stage Power Torque Method Cost
Stage 1 220 hp 340 Nm ECU remap only
Reliability impact: Minimal 		$600
Stage 2 250 hp 380 Nm ECU, Downpipe, Intake
Required: Upgraded intercooler, Downpipe, ECU remap
Reliability impact: Low 		$2500
Stage 3 300 hp 450 Nm -
Required: Bigger turbo, Forged internals, Upgraded fuel system
Reliability impact: Medium-High 		$8000

Popular modifications

  • ECU tune
  • Intercooler upgrade
  • Exhaust system upgrade

Tuning limitations

  • Stock internals limit power above 300hp
  • Cooling system upgrades needed for sustained high power

Cars with the Z20NET engine

This engine was fitted to 2 models

Photo Brand Model Generation Production years
No photo
 Cadillac BLS BLS 2006 - 2010
No photo
 Opel Signum Signum 2003 - 2008

All modifications (6)

Vehicle Generation Modification Power Gearbox Drive
Cadillac BLS BLS 2.0 Turbo 150 л.с. 6-МКП 2WD 150 hp 6-МКП 2WD
Cadillac BLS BLS 2.0 Turbo 150 л.с. 7-Автомат 2WD 150 hp 7-Автомат 2WD
Cadillac BLS BLS 2.0 Turbo 200 л.с. 6-МКП 2WD 200 hp 6-МКП 2WD
Cadillac BLS BLS 2.0 Turbo 200 л.с. 7-Автомат 2WD 200 hp 7-Автомат 2WD
Opel Signum Signum 2.0 150 л.с. 6-МКП 2WD 150 hp 6-МКП 2WD
Opel Signum Signum 2.0 150 л.с. 6-Автомат 2WD 150 hp 6-Автомат 2WD

Interesting Facts

  • The Z20NET engine was also used in several Opel and Saab models.
  • It was part of GM's global engine strategy.

Applications

Total produced: unknown

Vehicle Generation Years Power Markets
Cadillac BLS 2006-2009 2006-2009 200hp Europe

Compatible transmissions: 5-speed Automatic, 6-speed Manual

Drive types: FWD

Fuel Economy

Fuel Type Petrol 95
Octane Rating Minimum: 95 | Recommended: 98
Consumption (City) 11 L/100km
Consumption (Highway) 6.5 L/100km
Consumption (Combined) 8.2 L/100km
Real Consumption 9 L/100km
Fuel Tank Capacity 60 L
Range 732 km
Cost per 100 km 15-18 USD

Emissions Standards

Emission Standard Euro 4
CO₂ Emissions 195 g/km
Particulate Filter (DPF) Absent
AdBlue Not Required

Comparison with competitors

Engine Brand Displacement Power Torque
B207R Saab 1,998 cc 210 hp 300 Nm
2.0 TFSI Audi 1,984 cc 211 hp 350 Nm

Pros

  • Good balance of power and efficiency
  • Turbocharged performance

Cons

  • Higher maintenance costs
  • Known turbocharger issues