Lexus RX


Lexus RX is mid-size SUV produced since 1997. In model range of the Japanese company, RX takes place between compact SUV NX and large GX. In the Japanese domestic market, Lexus RX was sold under the name Toyota Harrier, but after the release of the third generation, these models have become different.
The main competitors of Lexus RX: Range Rover Sport, Mercedes-Benz GLE (M-Class), BMW X5, Volkswagen Touareg, Infiniti QX70 (FX)/QX60 (JX), Acura MDX, Cadillac SRX, Nissan Murano and other similar SUV.

Lexus RX engines are quite varied and powerful.
The first generation used 3-liter 1MZ engine, while similar Toyota Harrier used inline-4.
The second RX generation used the same V6 1MZ, as well as 3.3-liter 3MZ and 3.5-liter 2GR. To this, RX 400h was manufactured, which used 3MZ hybrid engine + electric motor.
The third Lexus RX generation used straight-4 1AR engines with 2.7 liters displacement. Together with them, 3.5-liter 2GR-FE engines were installed. There was also a hybrid version of RX450h with 2GR-FXE engine.
The fourth Lexus RX generation used 2GR-FKS and hybrid 2GR-FXS, as well as turbocharged 8AR-FTS.

Below you may find Lexus RX engine specifications, their main problems and most common faults, their causes and fixes. In addition, you may learn what engine oil is recommended to use, how often is should be changed, and what its capacity is. We will also consider the RX engine tuning: how easy it is to increase its power without losing reliability, as well as many other things.

List of Lexus RX models:

1 Generation, XU10 (1997 – 2003):
Lexus RX 300 (200 HP) – 3.0 L
Lexus RX 300 (220 HP) – 3.0 L

2 Generation, XU30 (2003 – 2008):
Lexus RX 300 (200 HP) – 3.0 L
Lexus RX 330 (230 HP) – 3.3 L
Lexus RX 350 (276 HP) – 3.5 L
Lexus RX 400h (211 HP) – 3.3 L

3 Generation, AL10 (2008 – 2015):
Lexus RX 270 (188 HP) – 2.7 L
Lexus RX 350 (276 HP) – 3.5 L
Lexus RX 450h (245 HP) – 3.5 L

4 Generation, AL20 (2015 – present):
Lexus RX 200t (238 HP) – 2.0 L
Lexus RX 350 (300 HP) – 3.5 L
Lexus RX 450h (309 HP) – 3.5 L




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