geko29

We were planning on replacing my wife's RX this year, but decided we're going to run it a couple more years. So I need to do some maintenance that I've been putting off based on prior assumptions. Here's what I know I'm doing:

-Brake fluid
-Coolant
-Oil/Filter (will be about 1,000 miles early, but may as well do it while it's up on the stands)
-Tires (not sure if this will be the third or fourth set)

Steering rack was replaced 3 years ago and the fluid looks good, so I was going to leave that alone. Battery was replaced two years ago. All six plugs and coils were replaced just over a year ago. Belts and idler pulleys are 4 years old. Here are the ones I'm not sure about:

-Transmission fluid/filter/pan gasket. As far as I can tell, this has never been done. If done previously, I'd absolutely do it again. But since it's been in there for 125k and looks fairly decent (somewhat bright red with a touch of brown), I'm a little nervous about the risk of causing a problem by changing it now.

-Transfer case/diff oil. Also never been done.

Intentions are to keep the car at least another 1-2 years, which probably means 20k miles at our current rate. Despite being somewhat troublesome under factory/extended warranty, it's actually been remarkably reliable out of warranty, and I'd obviously like to keep it that way.

Thoughts? Anything else I'm missing?

cdnewton

What year is your RX?

geko29

Sorry, it's an 07 RX350.

aachowhan

Mine is approaching 100k as well and it's a 2007 too. I would add differential fluid change to the list too, considering it's an AWD. Don't forget your air filters for the engine and cabin.

dmanwi

I just bought a 2007 with 106K. I immediately did the transfer case, differential, and did just a drain/fill of the transmission fluid. I also had the brake fluid drain/fill.

I will wait closer to 120K before have the spark plugs done.

geko29

I did include Transfer case/diff oil among the ones I was considering. Air filters were done over the weekend.