Just recently purchased my 2010 RX350 with 25k miles on it. I see that the maintenance schedule recommends changing the differential gaskets and fluids at 30k. I have been driving cars for the past 35 years and have NEVER changed these gaskets, nor has my mechanic husband ever changed done that for any of his vehicles. My last car was a Toyota Matrix and I had it for 10 years 120k miles and we never changed the gaskets or fluid and it was 4WD too.
Is this a Lexus thing?