VAISF

I brought my wife's '06 RX400h to our local lexus dealer for a service recall (retension clip and power module..something). Anyway, I had asked the service advisor about tranny and rear transfer case fluid change since it has 87k miles. He said that the 2006 RX400h has a sealed tranny and does not need a fluid change. Now, based on what I've been reading in this forum I believe it can and should be changed. Can someone please clarify this. Any info would be greatly appreciated. Thanks in advance.

rcy

Service advisor is wrong and right. It's not a sealed unit (tranny or transaxle), but in your maintenance guide Lexus states " Required only if vehicle is operated primarily in desert, on dirt roads or while towing." The first interval this is called for is 72 months or 60000 miles.

Me, personally, I don't believe in a 'lifetime' fluid and would just tell the dealer to do it (or do it yourself - I did and it was straight forward.

VAISF

Rcy, thank you for the clarification and I agree with you about "lifetime fluid". I'll have a local shop change it. Would You happen to know what type and how many quarts I'll need to replace the fluid. I'm not doin a flush. Just a drain and fill. Thanks again.

Iluvlexus

Why are the dealers so reticent to change the CVT fluid? The owners manual clearly states to change it under extreme conditions. I get the feeling that most dealers have never changed that fluid.

Can anyone direct me to a DIY for the CVT fluid change. I recall seeing it, but can't locate it now. As I recall, there is a fill and a drain plug and it takes about 4 quarts. I also remember there is a concern about exposure of the WS recommended fluid to humidity. Thanks for any help in advance.

smassey321

https://www.clublexus.com/forums/hyb...ial-plugs.html

I used this to change mine a few months ago. I used just over 6Q of ATF WS (so buy 7). I bought the fluid from a Toyota dealer. Ironically my transmission was replaced under warranty a few weeks ago due to a coolant leak. So I got new fluid again.

thomas1

+1 thank you smassey321...that was my writeup....The fluid in the tranny was brown, and the rear axle was pretty clean when I did mine at 88k miles. Make sure you use toyota type WS fluid...real easy to do....

Iluvlexus

OK, I'm ready to do it. I got under the car while I was doing the oil change to examine the drain and fill plugs. I have 8" high ramps that I use to do my oil services. As I look at the angle of the plugs, it looks like a fill to running out of the fill hole while on the ramps will result in a fluid level below the bottom of the fill hole when on the level. Is this something to worry about?

drewcam888

iTrader: (1)

yes it needs to be filled and the level checked on a level surface.

2010rouge

Sorry to bring back an old post - but I need to ask if the RX400h (All-wheel drive) have transfer case fluid that should be changed? I thought it used an electric motor for the rear wheel...
Can anyone clarify this?
Right now, I am close to 100K and I am looking to change both transmission and differential fluid...are there anything else I should change? (Already did water pump and timing belt)
How long do spark plugs last on this car? (and what are the negative effects if putting off changing spark plugs until 120k?)

Caprica

It does use an electric motor for the rear end, but that motor is attached to a rear diff. There is no mechanical connection to the transaxle, just a large orange cable

thomas1

Norma spark plug change is 120k miles. However don't panic they would easily last 200k miles....

2010rouge

I thought the spark plugs were part of the 90K service, but apparently it's not !
I remember reading somewhere that it uses iridium plugs, so I'll just keep on driving until it affects the MPG
Thank you both!

thomas1

In all my years working on cars the iridium plugs are absolutely the best. However there are cautions, The iridium is a very brittle metal and should be treated carefully, and when setting gap should be done with utmost care. There are some on this site that are on original plugs at 250k miles. Enjoy your ride and don't panic about the plugs, they are truly the best made plug ever.