wvuguy

New transmission was put in my 99 RX300 about 15k miles ago. There are 132k miles on the car total. I am thinking of switching to Amsoil synthetic ATF. I am going to drain the old oil and refil with synthetic. But since draining the ATF through drain plug only partially empties it, can both synthetic and old non synthetic oil co-exist? Can it cause problems?
An other question on different topic. I noticed when I unlock the doors using the remote key, the car beeps but lights don't flash. When I lock the doors, the car neither beeps nor the lights flash but I can hear the locks click to lock. Any way I can change the behavior? I would like the lights to flash. Thanks.

UNOHOO

iTrader: (3)

not sure about the mixing of the the ATF fluids but you could do this:
https://www.clublexus.com/forums/rx-...er-change.html

I have done it myself and its not bad at all, it allows you to change 7 out of the 9 quarts of atf

lexus114

I think only the dealer can change the lights to flash, not flash, beep etc.As far as the fluid,not a problem.Just do at least two flushes to get as much Synthetic in their as possible.Maybe you should drop the pan as well,and make sure things are ok in their.(remember get in and get out.dont mess around)

Lexmex

That thing related to the doors I believe is related to the c-best settings, and the last time I checked this was something that could only be done through the dealer.

I have 140K miles on my RX300 and also changed out to Amsoil ATF within the last 10K. I did 3 drain and fills over the course of about 3 weeks, though I did it after about 100 miles of driving each time (to simulate a commute). There was no problem at all doing this, and in fact I could feel the Amsoil ATF after the first drain and fill with some way smoother shifts.

Don't forget there are two drain plugs, the front differential on the left and the tranny pan on the right, though filling up is only done through the tranny dipstick.

wvuguy

That helps a lot. Thanks for the help guys.

AlexusAnja

So is there just one Amsoil ATF Synthetic, are a specific one we should look for to replace the Type IV in our vehicles?

Also, what about change interval?

Lexmex

Good question. There is more than one, but the Amsoil in question for our vehicles that run Type IV is this one,

Amsoil Synthetic Universal ATF

http://www.amsoil.com/storefront/atf.aspx

TunedRX300 has gone over 50K on this, I am probably still around 10K or so since I only got it when I got back to the U.S.

Lexmex

BTW For those newer RX-series (not the RX300) that run the Toyota WS (World Standard) ATF, there is an Amsoil ATF for that,

http://www.amsoil.com/storefront/atl.aspx

I should also note that at least in Florida if you are near a Murray's Speed & Custom, that is where I have seen Amsoil products (they also sell Redline oil products, too), http://www.murrayauto.com

I also saw it when I was in Bradenton, Florida at Carquest, http://www.carquest.com/

AlexusAnja

Thanks Lex.

I went on their site, and the one they show online has a silver non-translucent bottle, but your picture looks to be a white semi-trans. bottle. Ugh...

Since I'm "high" in mileage, I'll continue to work it out at 50K or so.

Lexmex

I saw the plastic ones when I recently went by Murray's and they also had the big gallon jugs, too, either way, it's the same stuff.

wvuguy

Has any one used Mobil 1 synthetic atf? How is it compared to amsoil synthetic atf? Its easy for me to get Mobil 1 froml local store. Thanks.

UNOHOO

iTrader: (3)

is that the mobil 3309 or is that something different?

lexus114

will work perfectly,and cheaper than Amsoil too.

oh and Wompster,he said Mobil-1 (the Synthetic fluid)

UNOHOO

iTrader: (3)

I was just makin sure

lexus114

No problemo! as Steve Martin once said,"were just a couple of wild and crazy guy`s!!)