Toyota 4GR-FSE engine is a modern 2.5-liter V-shaped six-cylinder engine produced since 2003. The engine is used on various Toyota and Lexus models, known for its reliability and high service life. Below is a table with its main technical characteristics, a list of models on which it was installed, and peculiarities of service.
Main characteristics of the Toyota 4GR-FSE engine
| Characteristics | Reference |
|---|---|
| Manufacturing | Toyota Motor Manufacturing Kentucky |
| Engine Brand | 4GR |
| Years of production | 2003 – present |
| Cylinder block material | Aluminum |
| Power system | Injector |
| Type | V-shaped |
| Number of cylinders | 6 |
| Valves per cylinder | 4 |
| Piston stroke, mm | 77 |
| Cylinder diameter, mm | 83 |
| Compression ratio | 12 |
| Engine displacement, cc | 2499 |
| Power, hp / rpm | 207 / 6400 |
| Torque, Nm/rpm | 260 / 3800 |
| Environmental standards | Euro 4-5 |
| Oil consumption, gr./1000 km | up to 1000 |
| Recommended oil | 0W-30, 5W-30, 5W-40 |
| Engine oil quantity, l | 6.3 |
| Oil change is carried out, km | 7000-10000 |
| Engine life, thousand km | 300+ (in practice) |
| Potential at tuning, hp | 300+ |
| Engine operating temperature, °C | – |
Models on which the engine was installed
| Model | Years of manufacture |
|---|---|
| Toyota Mark X 1 (X120) | 2004 – 2009 |
| Toyota Mark X 2 (X130) | 2009 – 2019 |
| Toyota Crown 12 (S180) | 2003 – 2008 |
| Toyota Crown 13 (S200) | 2008 – 2012 |
| Toyota Crown 14 (S210) | 2012 – 2018 |
| Lexus IS250 2 (XE20) | 2005 – 2013 |
| Lexus IS250C 2 (XE20) | 2008 – 2013 |
| Lexus IS250 3 (XE30) | 2013 – 2015 |
| Lexus GS250 4 (L10) | 2011 – 2015 |
Toyota 4GR-FSE Engine Service Manual
| Maintenance Type | Periodicity | Volume or replacement |
|---|---|---|
| Oil service | every 10,000 km | 6.3 liters |
| Oil type | – | 0W-20 |
| Transmission timing type | – | chain |
| Resistance of timing chain | – | not limited |
| Valve thermal clearances | – | hydrocompensators, no adjustment required |
| Oil filter | every 10,000 km | – |
| Air filter | every 40,000 km | – |
| Fuel filter | Every 80,000 km | – |
| Spark plugs | every 100,000 km | – |
| Auxiliary belt | every 100,000 km | – |
| Coolant | every 7 years or 160,000 km | – |
Reliability and repair of the Toyota 4GR-FSE engine
Simultaneously with the 3GR, in 2003, a 2.5 liter variant – 4GR – appeared. Later the series was supplemented and to the already available 1GR, 3GR and 4GR, were added 3.5 liter 2GR, 4 l. 6GR and 2.5 liter. 5GR.
The 4GR-FSE version replaced the 1JZ-GE and is a downsized version of the 3GR-FSE. A forged crankshaft with a piston stroke of 77 mm was installed in the aluminum cylinder block with a 60° camber angle from the 3-liter engine, and the cylinder diameter was reduced to 83 mm. As a result, the displacement of this V6 is now 2.5 liters.
The 4GR-FSE heads are similar to those used on the 3GR-FSE: DOHC with Dual-VVTi timing on the intake and exhaust camshafts, which works similarly. The camshafts themselves are the same as on the 3GR. On the intake is a manifold with an ACIS length modification system. Like its larger counterpart in the FSE modification, the 4GR is equipped with a direct fuel injection system.
Problems and disadvantages of Toyota 4GR engines
- Fifth Cylinder Problem: Scoring in the fifth cylinder due to possible overheating or abrasive particles.
- Defective valve springs: Defects have been found on engines manufactured from 2005 through 2008, leading to a recall campaign.
- Noisey phasor sprockets: The problem is triggered by phasor sprockets that make a crackling noise. Replacing the sprockets helps in some cases, but often a complete replacement of the clutches is required.
- Other problems: Engines are prone to breakdowns in mixture sensors, lambda probes, ignition coils and the pump. Valve fouling and corroded fuel tubes in early models are common.
Toyota 4GR-FSE engine tuning
4GR Compressor
Similar to the 3GR, the 2.5-liter 4GR is not intended for building something very powerful and fast, for these purposes it is better to buy a 1JZ-GTE. Putting any camshafts on the 4GR and trying to spin it to the skies is not a very sensible idea. The only more or less adequate solution is to buy a compressor kit. For 4GR such kits are produced by ARMA. The boost pressure is 0.5 bar, so you can put it on a standard piston. As a result, you will get about 310 hp and 380 Nm of torque. It doesn’t make sense to build more powerful configurations.
MOTOR RATING: 4