L37 Cadillac Northstar L37

4.6-літровий V8 двигун Cadillac Northstar L37, відомий своєю потужністю та плавністю роботи, але вимагає уважного обслуговування для уникнення проблем з прокладкою головки блоку циліндрів.

Brand: Cadillac Type: Petrol Configuration: V8 Production Years: 1993 - 2005 Production: Livonia, Michigan, USA
14 Brand engines
16 Modifications

Technical Specifications

Engine Displacement 4.6 L (4,565 cc)
Configuration V8
Number of Cylinders 8
Valves per Cylinder 4
Power 275 - 300 л.с.
Torque 393 - 400 Н*м
Cylinder Bore 93.00 mm
Piston Stroke 84.00 mm
Compression Ratio 10.3:1
Firing Order 1-8-7-2-6-5-4-3
Fuel System Sequential Fuel Injection
Aspiration Naturally Aspirated
Intercooler No
Maximum RPM 6,500 rpm
Max Torque RPM 4,400 rpm
Valve Train DOHC
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 Northstar
Manufacturing Plant Livonia, Michigan, USA
Predecessor null
Successor null

Maintenance

Engine Oil Capacity 7.5 L (with filter: 8 L)
Recommended Viscosity 10W-30
Oil Standard API SJ
Recommended Brands ACDelco, Mobil 1, Valvoline
Oil Change Interval 12 000 km or 12 mo
Oil Filter PF61
Air Filter A1618C
Replace every 40 000 km
Fuel filter GF652
Spark Plugs Type: Platinum
Part number: 41-950
Gap: 1 mm
Quantity: 8 pcs
Replace every 100 000 km
Coolant Capacity 13.5 L
Coolant Type Dex-Cool (ACDelco)
Coolant Change Interval 240 000 km
Thermostat Opening Temperature 89°C
Operating Temperature 90°C
Max Operating Temperature 110°C
Critical Temperature 120°C
Annual Maintenance Cost 1000-1500 USD

Reliability

Reliability rating: 7/10

Expected lifespan: 300 000 km

Common problems

Problem Severity Mileage Repair cost
Head gasket failure High 150000-200000 km $2000-4000
Oil leaks from the oil pan Medium 100000-150000 km $500-1000

Known defects

  • Head gasket issues
  • Oil consumption problems

Tuning potential

Tuning potential: Medium | Max. safe power: 450 hp

Stage Power Torque Method Cost
Stage 1 320 hp 430 Nm ECU remap only
Reliability impact: Minimal 		$600
Stage 2 350 hp 470 Nm ECU, Exhaust System
Required: Cold air intake, Performance exhaust
Reliability impact: Low 		$2500
Stage 3 400 hp 520 Nm -
Required: Supercharger kit, Forged internals
Reliability impact: Medium-High 		$8000

Popular modifications

  • Cold air intake
  • Performance exhaust
  • ECU tuning

Tuning limitations

  • Cooling system upgrades needed for high power
  • Transmission may require strengthening

Детальні технічні характеристики

4
модифікацій
295–305
к.с.

Спільні характеристики

Back suspension Independent, spring
Boost type none
Capacity 4565 cm3
Country USA
Cylinder layout V-type
Engine code L37
Engine placement Front, transverse
Engine type Gasoline
Front suspension Independent, spring
Injection type distributed injection (multipoint)
Number of cylinders 8
Number of gear 4
Steering wheel position Left
Timing belt DOHC
Valves per cylinder 4

Модифікації двигуна

4.6 AT (295 hp)
Привід Front wheel drive КПП Automatic DTS 1 2005–2011
295 hp
engine
Compression ratio 10
Cylinder bore 93 mm
Engine power 295 hp
Fuel tank capacity 70 l
Max power (kW) 217 kW
Max power at RPM 5600 RPM
Maximum torque 388 N*m
Min trunk capacity 532 l
Stroke cycle 84 mm
Turnover of maximum torque 4000 RPM
performance
Acceleration (0-100 km/h) 7.1 s
Max speed 210 km/h
fuel
City driving fuel consumption per 100 km 13.8 l
Fuel 92
Highway driving fuel consumption per 100 km 9.4 l
Mixed driving fuel consumption per 100 km 10.2 l
transmission
Drive wheels Front wheel drive
Gearbox type Automatic
dimensions
Back track width 1567 mm
Clearance 135 mm
Curb weight 1840 kg
Front track width 1588 mm
Full weight 2425 kg
Height 1464 mm
Length 5274 mm
Number of doors 4
Wheelbase 2936 mm
Width 1901 mm
suspension
Front brakes Disc
Rear brakes Disc
other
Body type Sedan
Car class F
Number of seater 5
4.6 AT (305 hp)
Привід Front wheel drive КПП Automatic Seville 5 1998–2004
305 hp
engine
Compression ratio 10.55
Cylinder bore 93.0 mm
Engine model l37 northstar
Engine power 305 hp
Fuel tank capacity 70 l
Max power (kW) 224 kW
Max power at RPM 6400 RPM
Maximum torque 405 N*m
Min trunk capacity 445 l
Stroke cycle 84.0 mm
Turnover of maximum torque 4400 RPM
performance
Acceleration (0-100 km/h) 6.8 s
Max speed 240 km/h
fuel
City driving fuel consumption per 100 km 19.5 l
Fuel 92
Highway driving fuel consumption per 100 km 11.0 l
Mixed driving fuel consumption per 100 km 14.1 l
transmission
Drive wheels Front wheel drive
Gearbox type Automatic
dimensions
Back track width 1586 mm
Clearance 130 mm
Curb weight 1920 kg
Front track width 1593 mm
Height 1414 mm
Length 4991 mm
Number of doors 4
Wheelbase 2850 mm
Width 1901 mm
suspension
Front brakes Disc
Rear brakes Disc
Wheel size 225/60 R16
other
Body type Sedan
Car class F
Number of seater 5
Pitch Circle Diameter DIA70.3 5x115 mm
4.6 AT (299 hp)
Привід Front wheel drive КПП Automatic Eldorado 10 1992–2002
299 hp
engine
Compression ratio 10.3
Cylinder bore 93 mm
Engine model L37
Engine power 299 hp
Fuel tank capacity 76 l
Max power (kW) 220 kW
Max power at RPM 6000 RPM
Maximum torque 393 N*m
Min trunk capacity 434 l
Stroke cycle 84 mm
Turnover of maximum torque 4400 RPM
performance
Acceleration (0-100 km/h) 7.4 s
Max speed 244 km/h
fuel
City driving fuel consumption per 100 km 14.1 l
Fuel 92
Highway driving fuel consumption per 100 km 10.4 l
Mixed driving fuel consumption per 100 km 11.5 l
transmission
Drive wheels Front wheel drive
Gearbox type Automatic
dimensions
Back track width 1546 mm
Clearance 150 mm
Curb weight 1729 kg
Front track width 1546 mm
Full weight 2246 kg
Height 1370 mm
Length 5136 mm
Number of doors 2
Wheelbase 2743 mm
Width 1918 mm
suspension
Front brakes ventilated disc
Rear brakes drum
Wheel size 225/60 R16
other
Body type Coupe
Car class F
Number of seater 5
Pitch Circle Diameter DIA70.3 5x115 mm
4.6 AT RWD (299 hp)
Привід Rear wheel drive КПП Automatic Allante 1 1989–1996
299 hp
engine
Compression ratio 10.3
Cylinder bore 93 mm
Engine model L37
Engine power 299 hp
Fuel tank capacity 76 l
Max power (kW) 220 kW
Max power at RPM 6000 RPM
Maximum torque 393 N*m
Min trunk capacity 460 l
Stroke cycle 84 mm
Turnover of maximum torque 4400 RPM
performance
Acceleration (0-100 km/h) 6.9 s
Max speed 240 km/h
fuel
City driving fuel consumption per 100 km 14.8 l
Fuel 95
Highway driving fuel consumption per 100 km 8.6 l
Mixed driving fuel consumption per 100 km 12.0 l
transmission
Drive wheels Rear wheel drive
Gearbox type Automatic
dimensions
Back track width 1535 mm
Clearance 145 mm
Curb weight 1700 kg
Front track width 1535 mm
Height 1310 mm
Length 4540 mm
Number of doors 2
Wheelbase 2525 mm
Width 1865 mm
suspension
Front brakes ventilated disc
Rear brakes Disc
other
Body type Cabriolet
Car class E
Number of seater 2

Cars with the L37 engine

This engine was fitted to 5 models

Photo Brand Model Generation Production years
No photo
 Cadillac Eldorado Eldorado 1992 - 2002
No photo
 Cadillac Seville Seville 1998 - 2004
No photo
 Cadillac DeVille DeVille (2000-2005) 2000 - 2005
No photo
 Cadillac LSE LSE (C-body) 1993 - 1996
No photo
 Oldsmobile Eighty-Eight Eighty-Eight (C-body) 1992 - 1999

All modifications (16)

Vehicle Generation Modification Power Gearbox Drive
Cadillac Eldorado Eldorado 4.6L V8 275 л.с. 4-Автомат 2WD 275 hp 4-Автомат 2WD
Cadillac Eldorado Eldorado 4.6L V8 275 л.с. 4-Автомат 4x4 275 hp 4-Автомат 4x4
Cadillac Eldorado Eldorado 4.6L V8 300 л.с. 4-Автомат 2WD 300 hp 4-Автомат 2WD
Cadillac Eldorado Eldorado 4.6L V8 300 л.с. 4-Автомат 4x4 300 hp 4-Автомат 4x4
Cadillac Eldorado Eldorado 4.6L V8 320 л.с. 4-Автомат 2WD 320 hp 4-Автомат 2WD
Cadillac Eldorado Eldorado 4.6L V8 320 л.с. 4-Автомат 4x4 320 hp 4-Автомат 4x4
Cadillac Seville Seville Cadillac Seville 4.6L V8 275 л.с. 4-Автомат 2WD 275 hp 4-Автомат 2WD
Cadillac Seville Seville Cadillac Seville 4.6L V8 275 л.с. 5-Автомат 2WD 275 hp 5-Автомат 2WD
Cadillac Seville Seville Cadillac Seville 4.6L V8 300 л.с. 6-Автомат 2WD 300 hp 6-Автомат 2WD
Cadillac DeVille DeVille (2000-2005) 4.6L V8 275 л.с. 4-Автомат 2WD 275 hp 4-Автомат 2WD
Cadillac DeVille DeVille (2000-2005) 4.6L V8 275 л.с. 5-Автомат 2WD 275 hp 5-Автомат 2WD
Cadillac DeVille DeVille (2000-2005) 4.6L V8 300 л.с. 4-Автомат 2WD 300 hp 4-Автомат 2WD
Cadillac DeVille DeVille (2000-2005) 4.6L V8 300 л.с. 5-Автомат 2WD 300 hp 5-Автомат 2WD
Cadillac LSE LSE (C-body) 4.6L V8 280 л.с. 4-Автомат 2WD 280 hp 4-Автомат 2WD
Cadillac LSE LSE (C-body) 4.6L V8 280 л.с. 4-Автомат 4x4 280 hp 4-Автомат 4x4
Oldsmobile Eighty-Eight Eighty-Eight (C-body) 5.7L V8 260 л.с. 4-Автомат 2WD 260 hp 4-Автомат 2WD

Interesting Facts

  • The Northstar L37 was known for its smooth power delivery and high-revving nature.
  • It was one of the first engines to feature a 'limp home' mode, allowing the car to be driven without coolant for a limited distance.

Applications

Total produced: unknown

Vehicle Generation Years Power Markets
Cadillac Seville STS 1993-2004 275hp/300hp USA, Canada
Cadillac Eldorado ETC 1993-2002 275hp/300hp USA, Canada

Compatible transmissions: 4-speed Automatic 4T80-E

Drive types: FWD

Fuel Economy

Fuel Type Petrol 95
Octane Rating Minimum: 91 | Recommended: 95
Consumption (City) 15 L/100km
Consumption (Highway) 9 L/100km
Consumption (Combined) 11.5 L/100km
Real Consumption 12.5 L/100km
Fuel Tank Capacity 70 L
Range 609 km
Cost per 100 km 15-20 USD

Emissions Standards

Emission Standard Euro 3
CO₂ Emissions 290 g/km
Particulate Filter (DPF) Absent
AdBlue Not Required

Comparison with competitors

Engine Brand Displacement Power Torque
1UZ-FE Lexus 3,969 cc 260 hp 353 Nm
M113 Mercedes-Benz 4,266 cc 275 hp 400 Nm

Pros

  • High power output for its time
  • Advanced technology like 'limp home' mode

Cons

  • Known head gasket issues
  • High maintenance costs