So i reached almost 115k and i know we can't get a tranny flushed, but shop said they can do tranny service which would just drain and refill 20-30% of the fluid.
Is it worth doing it? and how much would be a fair price to pay?
Shop said its 2-3 hour procedure, probably most of the time is just waiting fluid to drain lol, and they wanted like $250 can't remember the numbers now..

 

I would not do it because if the tranny messes up and Lexus finds out the fluid has been messed with, warranty voided. If a good portion of the ATF can't be drained, why bother?

 

At 115k I doubt he's too worried about his warranty.

Interestingly, you can do a full (or near full) flush now...

was a thread about this a month or two ago... someone finally designed the part that Lobuxracer predicted several years ago- An aftermarket fluid exchange attachment in the same size/shape as the heat exchanger built into the side of the transmission.... so they swap your heat exchanger for this part, then use it to flush/fill the transmission, then swap the parts back... not the easiest thing in the world but it should work.

Mind you Lexus still doesn't ever suggest actually doing this, but it's at least physically possible now.

 

I've seen so many threads on this, with people trying to be sold transmission fluid drain-and-fills from dealerships. I think I read on one that in Canada, the Scheduled Maintenance Guide actually calls for this on the 2IS, but in the US it decidedly does not (at least for the 2007). So I would immediately be wary of anything a dealership tries to sell that isn't actually called for in the Lexus maintenance guide.

 

Since it appears you have an IS350 I'd have to agree with not doing a thing with the trans fluid.

 

Pretty sure all years of the US manual explicitly state it's lifetime fluid and never needs changing.

In Canada I wanna say even they dropped the "change your tranny fluid" thing a year or two ago... I think maybe Jeff Lange mentioned it?

 

Thanks guys. Will keep it as it is then

 

Sorry, don't know how I could've missed the 115k when it's in the title and 1st post, lol..

 

One of those days, lol

 

How about for the manual trannys, would you guys recommend replacing the fluid in it or is it also a lifetime thing?