User 122922

Hi everyone, I’m looking to do a transmission drain n fill very soon on my 08 Lexus GS 350 RWD car has 110mi and from what Im looking at the car history transmission has never been drained before? Is it recommended to do it at this mileage?? Also I asked the mechanic if It is possible to change the transmission filter as well, so he says this model has only screen no filter ??? And we’re not taking down the pan? So my question is this year and model doesn’t have transmission filter ? Since he mentioned he’s not going to take down the pan only drain n fill and he quoted out for $180 ? Should I go for it ? Any recommendations would be appreciated! ✌🏼

ibidu1

iTrader: (1)

There is a transmission filter and magnets that collect debri. Anything over 100k I would avoid dropping the fluid pan/replacing the filter, and just stick to a drain and fill. Basically they drain about 4 liters and replace it.

Does the $180 include the fluids? Is he going to use toyota WS transmission fluid for that price? You can call your toyota dealer and see how much they charge.

I would do about 3 drain and fills with about 3k miles in between, and then replace the filter if you wanted to be super careful. Anytime you replace the fluids in any transmission with higher mileage, you dont want to disrupt the clutch packs in the transmission. Old fluid would have a different viscosity then new fluid. Also when you do the first fluid change, the mechanic can see the condition of the transmission. If the fluid is red and no odor, then its good. If the fluid is black and smelly then, I would only stick to that one fluid change.

enshiu

I replaced mine and its worth it.

User 122922

Good to hear that, I was told that I can switch from Toyota ws atf to Amsoil atf signature series ? Do you think it’s a good idea to do the switch since it’s a 100% synthetic! Or I should stick with Toyota ws for now and see how the car will act !!? Thanks again for your help ✌🏼

enshiu

does ams oil make a ws fluid?

https://www.clublexus.com/forums/gs-...id-change.html
Link to replacement

ibidu1

iTrader: (1)

I think its best to stick with the oem fluid. Because you are only doing a drain and fill. When you open that drain plug 2/3 of the old fluid remains inside the transmission, you are only able to drain 1/3. If you ran the amsoil, you are mixing two different fluids. Amsoil states it can replace WS, so you can use it. Personally I would rather stick to the same fluids thats already in there.

But if it were something that I can completely drain, like the differentials. Then yes I would be open for any good brand.

User 122922

Great! Thanks I’ll stick to the ws for now , I have my appointment tomorrow I’ll keep you updated how it goes 👌, thanks anyway

QUOTE=ibidu1;11086631]I think its best to stick with the oem fluid. Because you are only doing a drain and fill. When you open that drain plug 2/3 of the old fluid remains inside the transmission, you are only able to drain 1/3. If you ran the amsoil, you are mixing two different fluids. Amsoil states it can replace WS, so you can use it. Personally I would rather stick to the same fluids thats already in there.

But if it were something that I can completely drain, like the differentials. Then yes I would be open for any good brand.[/QUOTE]

GHBabie

[accidentally posted in the wrong thread, oops]

Oceans13

Its pretty straightforward. I do it cold and on ramps, and exactly 4 quarts come out (and go in). Pictured are all the things you will need.



From the second drain and fill. I put a new plug and gasket as well.

brainsurge

I would rather just disconnect the transmission oil cooler, let someone else run the motor in park until you see bubbles, then shut it off. measure how much came out and refill. i drive mannol oil in mine, which is rather cheap, atf type iv from mannol costs me in germany around 2.5€ per liter. and i already drove more than 100k km with that oil, car now has 335k km (around 210k mls)