Auto gearbox oil change

[Tannaton]

Originally Posted by Bits

Hi All,
I bought a 2006 D5 XC90 a week ago. The gearbox needs a fluid service as a message came up today on the dash. The car has done <90k miles.
I have bought 7l of Triple QX ATF Plus, purchased from Euro Car Parts.
I have purchased 2 sets of sump washers (Alu and rubber) from Volvo.
I plan on doing the fluid change myself;

Remove the torx fill plug after getting the gearbox up to temp.
Remove the sump tube and collect the oil in a clean container.
Inspect the old oil for any contaminates - metal etc.
Weigh the old oil.
Replace the sump plug when the old oil stops dripping and use a new alu washer - usually after a cup of tea.
Weigh the same amount of new oil and add to the box - refit the torx plug.
Run the car for several hundred miles then repeat the oil change using the Toyota cheaper oil.
Any comments please - will be appreciated.
Regards,
Mark.

That’s should be fine... except make sure you remove the whole sump plug not just the middle level drain (which I believe is what you are saying).

You will get around 3.5 litres out each time, maybe 4 if the car has been driven onto ramps and is “nose up”. 4 of these changes will get you to a circa 94% change.

What is the exact message on the dash?

[Tannaton]

Originally Posted by Spacejam

Do you know if this procedure is the same for the TG-81SC gearbox?

I can’t answer that I’m afraid...

[windy millar]

I will do my second change this afternoon, the first was 3 weeks ago and gave smoother changes afterwards.
I plan to do this every 2 or 3 weeks weather permitting until it is pretty clear, which it certainly wasn't on the first drain.
My thinking was to give it time to circulate the new oil to mix better with the old, is this a bad idea? ie. is it better to drain and fill until clear in one go rather than my method?

[S60D5-185]

Originally Posted by windy millar

I will do my second change this afternoon, the first was 3 weeks ago and gave smoother changes afterwards.
I plan to do this every 2 or 3 weeks weather permitting until it is pretty clear, which it certainly wasn't on the first drain.
My thinking was to give it time to circulate the new oil to mix better with the old, is this a bad idea? ie. is it better to drain and fill until clear in one go rather than my method?

That's the way I do it for exactly the same reasons as yourself.

Plenty of others have done it in one go via the Gibbons method without any issues though.

Personal preference I suppose