Differential oil change?
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Joined: Dec 2005
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From: CT
Differential oil change?
Are there any tutorials online about chaning the differential oil on the IS350? It seems it should be pretty strait forward, but any tips are appreciated. How much fluid does it require? Any torque specs for the drain/fill bolts? Thanks for the help 
Just like you said its very straight forward. I just did this 2days ago. Just drain the old fluid out, fill it till it spills and thats it. I used Royal Purple 75w-90. Only thing I had to do that I didnt expect it unbolting part of the exhaust and one of the reinforcement bars.
Thread Starter
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Joined: Dec 2005
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From: CT
Just like you said its very straight forward. I just did this 2days ago. Just drain the old fluid out, fill it till it spills and thats it. I used Royal Purple 75w-90. Only thing I had to do that I didnt expect it unbolting part of the exhaust and one of the reinforcement bars.
You fill the differential the same way you fill any other differential out there. Fill until it starts pouring out, assuming your car is level, and when the flow of gear oil is almost leveling out w/ the opening of the fill hole, PLUG IT. It's now full.
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There was enough room to just squeeze but if you can find an adapter then I'd recommend that, as it was a little tough but I managed.
Theres no recommended time to change it technically, you can change it whenever you want. I'm over 50k so I figured I should do it, plus I didnt like the way mines felt. Next up is the tranny fluid.
Theres no recommended time to change it technically, you can change it whenever you want. I'm over 50k so I figured I should do it, plus I didnt like the way mines felt. Next up is the tranny fluid.
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From: MA
In no point in the Lexus service manual does it ever need new a tranny fluid or differential oil change. Should you do it? That's up to you =]
And isn't the transmission a sealed case? It wouldn't exactly be an easy fix.
And isn't the transmission a sealed case? It wouldn't exactly be an easy fix.
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Joined: Jun 2006
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From: Utah
If you want the best,
http://www.amsoil.com/storefront/svg.aspx
http://www.amsoil.com/storefront/g2039.aspx
Koz
http://www.amsoil.com/storefront/svg.aspx
http://www.amsoil.com/storefront/g2039.aspx
Koz
Thread Starter
Pole Position
Joined: Dec 2005
Posts: 310
Likes: 0
From: CT
If you want the best,
http://www.amsoil.com/storefront/svg.aspx
http://www.amsoil.com/storefront/g2039.aspx
Koz
http://www.amsoil.com/storefront/svg.aspx
http://www.amsoil.com/storefront/g2039.aspx
Koz
That's pretty useless for a "change"
Even removing the torque converter wouldn't get half the fluid out.
There's like a 7 page thread on this topic, with diagrams and charts.
It's physically impossible to change the transmission fluid on these cars unless you custom build your own machine with a fluid exchanger shaped exactly like the heat exchanger attached to the transmission, then swap the two exchangers, then change your fluid, then swap back. Which would likely be a lot more cost and labor than just putting in a new transmission if yours dies because it has 200,000 mile fluid in it.