DDGS350

Hello,
I wondering when do we need to change the transmission fluid? I have the 2007 GS350 with 47K miles and I've read in the manual that said we don't need to change trans fluid for a long time and there is not dipstick to find out how the condition of the fluid is either. I think this is a really risky practice...... Any advices or knowledge would be great to know.

Thanks a lot,

Dh.

rominl

iTrader: (4)

i also believe on the new lexus tranny fluid is not changed for a long time by design

LexFather

^^ Yeah from my understanding its a new grade of tranny fluid they use that never has to be changed. Considering the GS has advanced 6/8/CVT trannies for now I would follow it.

I have thought about adding a tranny cooler though (the biggiest enemy to a tranny is high heat and hot tranny fluid). Has anyone else done this?

Stormforge

really? never has to be changed?

lexusgs408

I wanted to change mine too but I heard they don't need to be change for a while too................

MI350_55

On the maintenance booklet, the only time to change the fluid is if there are signs of leakage. I'd also like to add a tranny cooler, but I'm not sure if this is beneficial or detrimental to the original design.

IS-SV

It can increase the possibility of leakage.

MI350_55

Very good point . I'll leave the original design alone.