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Technical
  • Toyota 4GR engine Technical details and specifications (2003-2012)


    No. of cylinders 6/DOHC
    Capacity 2500cc
    Firing order 1-2-3-4-5-6
    Minimum octane rating 95 RON (petrol)
    Air metering Type Mass Combined ignition and fuel ECM
    Lambda senson (Oxygen) heater 11-16 Ohm
    Compression pressure 9,8-13,7 bar
    Radiator cap 0,93-1,22 bar
    Thermostat opens 80-84°C

    © Motor car History

Service
  • Toyota 4GR engine Maintenance and Service Guide (2003-2012)

    Spark plugs Original equipment Denso Type FK20HBR11
    Spark plugs Electrode gap 1,0-1,1 mm
    Spark plugs Tighten 25 Nm
    Valve clearance -INLET Hydraulic
    Valve clearance -EXHAUST Hydraulic
    Engine oil grade - normal/moderate climate 5W/30 SAE or 10W/30 SAE Semi-synthetic
    Engine oil grade - cold climate 5W/30 SAE Semi-synthetic
    Engine oil grade - hot climate 5W/30 SAESemi-synthetic
    Engine oil change with filter 6,3 litres
    Sump drain bolt Tighten 40 Nm
    Cooling system 9,1 litres
    Air conditioning refrigerant Type R134a
    Air conditioning refrigerant quantity 430±30 grams
    Air conditioning oil Type Dens Oil 8
    Air conditioning oil viscosity 46 ISO

    Cylinder head Tightening torques: Renew bolts
    Stage 1 Tighten 20 Nm
    Stage 2 Tighten 36 Nm
    Stage 3 Tighten 90° 
    Stage 4 Tighten 90°

    © Motor car History

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Toyota 4GR engine (V6)

Toyota lexus 4GR engine (V6)

Manufacturer

Toyota Motor Corporation

Production

2003–

Configuration

DOHC 60° V6

Fuel

Petrol

Displacement

2,499cc

Predecessor

Toyota MZ engine
Toyota JZ engine (I6)
Toyota VZ engine

The Toyota 4GR Engine is a petrol V6 engine used in Lexus and Toyota cars from 2003 on.

History

The Toyota GR engine family is an V6 piston engine series. The GR series has a 60° die-cast aluminum block and aluminum DOHC cylinder heads. This engine series also features 4 valves per cylinder, forged steel connecting rods, one-piece cast camshafts, and a cast aluminum lower intake manifold.

Some variants use multi-port fuel injection, some have D4 direct injection, and others have a combination of direct injection and multi-port fuel injection or D4-S.The GR series replaces the previous MZ V6 and JZ inline-6, and in the case of light trucks the VZ V6.

 

The 4GR-FSE is a 2.5 L (2499 cc) version. Bore is 83.0 mm while stroke is reduced to 77.0 mm. Output is 207 PS (152 kW; 204 hp) at 6,400 RPM and 26.5 kg·m (260 N·m; 192 lb·ft) at 3,800 RPM. This version also features Dual VVT-i, variable valve timing on both the intake and exhaust cams and an improved D4 direct injection system.For 2006 on model year vehicles. Toyota rates engines on 87 pump octane, Lexus rates engines on 91 pump octanes.

Type V6 DOHC 24 valve Dual VVT-i (D-4)
Displacement 2,499cc
Inner diameter φ83mm x stroke 77.0mm
Compression ratio 12.0

Japanese spec Output/torque
158kW (215PS)/6,400rpm 260Nm (26.5kg-m)/3,800rpm (premium gasoline specification)
149kW (203 PS)/6,400 rpm 243 Nm (24.8 kg-m)/4,800 rpm (regular gasoline specification)

Applications (calendar years):

  • 2003 Toyota Crown Royal & Athlete (GRS180/181) (Japan)
  • 2004 Toyota Mark X (GRX120/125) (Japan)
  • 2006 Lexus IS 250 & IS 250 C (GSE20/25)
  • 2008 Toyota Crown Royal & Athlete (GRS200/201) (Japan)
  • 2009 Toyota Mark X (GRX130/135) (Japan)
  • 2012 Lexus GS250