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Posted

I am wondering when do we replace following fluids in RX400H. The service schedules only talks about replacing Brake Fluid at 30K.

1.Transmission

2. Coolant

3. Power Steering

4. Differential

Is there a criteria to replace these based on color or length of time etc.? Also, are there any other fluids to change

.

Posted

Just go to your dealer and have them do their 30K service. They'll be moar than happy to do whatever is necessary and take your $600+. :rolleyes:

Posted

Schedules go by time, mileage, and whether you have severe conditions such as all city driving or towing.

Posted

According to my 2006 Lexus RX400h Owner's Manual Supplement,

every 36 months or 30,000 miles: brake fluid change

at 72 months or 60,000 miles: transmission and differential fluid change ONLY if operated primarily in desert, on dirt roads, or while towing

at 108 months or 90,000 miles: timing belt change and trans/diff fluid change ONLY if operated primarily in desert, on dirt roads, or while towing

at 120 months or 100,000 miles: engine and inverter coolant change

at 144 months or 120,000 miles: spark plug change

I don't think there is any fluid for the electric steering.

Posted

I will tell you at 87k miles the transmission fluid in the front was brown in my RX400h (2008)

Posted

The manual advises the owner to have the fluids "checked" at every 30,000 miles or so.

  • 2 weeks later...
Posted

The more often, the better.

Oil - 10k. They say 5k, it's not necessary with proper synthetics.

ALL other fluids - 30K with complete/proper flush/fill.

It certainly does not hurt doing it more often.

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