Transmission Service? keep old fluid or put new..

[BG1988]

What do you guys think about doing a transmission service

it's 11qt that need to be replaced after swapping out the transmission pump (it has to be drained before service according to the dealer)

should i reuse the old fluid or put new fluid I got 12qt at $5.27/qt from oreallys auto parts
valvoline dexron 6 Full Synthetic (officially licensed )(NOT muti car formula ) (priced match walmart)

also a new drain plug on the transmission pan and aux pump it's 10$ but i don't want a leak

the SUV has 106k on it the fluid is clean no glitter

 

[swathdiver]

New, why not?

 

[mb1500]

Take the opportunity to put new fluid in.

 

[OR VietVet]

I would not hesitate to swap out all fluid.

 

[donjetman]

NEW

 

[gooffeyguy]

New!
Do you know when the fluid was last changed?

Why is it even a question

 

[Joseph Garcia]

As stated by folks above, you absolutely should use new fluid. All fluids degenerate over time, and much of that degeneration is not visible to the eye.

 

[BG1988]

New!
Do you know when the fluid was last changed?

Why is it even a question

i'm guessing around 80k looks like the dealership is refusing to use the oid oil

 

[donjetman]

the dealership is refusing to use the oid oil

Ya think ??

 

[BG1988]

they're going to change the drain plug too so it does not risk leaking