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Trans flush or drain/refill + filter

TQUAP

By TQUAP
in Engines & Drivetrain

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TQUAP Enthusiast

TQUAP

Posted
Posted

Buying a 2018 Escalade with 10L80 and 74k tomorrow. Maintenance history suspected to be good based on profile of PO and condition of vehicle but unknown. I'm planning to replace all fluids right off the bat so I'm working with a clean baseline. I'd like to own the vehicle for a while.

 

So in regards to the transmission, question is would it be better to have a full flush done or do a drain/refill + filter? Or should I shell out the money for a flush + filter?

 

TIA

KARNUT Senior Enthusiast

KARNUT

Posted
Posted
3 hours ago, TQUAP said:

Buying a 2018 Escalade with 10L80 and 74k tomorrow. Maintenance history suspected to be good based on profile of PO and condition of vehicle but unknown. I'm planning to replace all fluids right off the bat so I'm working with a clean baseline. I'd like to own the vehicle for a while.

 

So in regards to the transmission, question is would it be better to have a full flush done or do a drain/refill + filter? Or should I shell out the money for a flush + filter?

 

TIA

On my GM I bought an extractor and pulled out through the dipstick. I measured out and put the same amount in. I did it twice one week apart. I wouldn’t flush any transmission. All my vehicles are on a 30K drain and fill. With the transmission if the fluid is bad you can smell it. 

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diyer2 Senior Enthusiast

diyer2

Posted
Posted

Drain, filter and refill. Then regular services afterwards, 25K, 30K etc., your choice.

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KARNUT Senior Enthusiast

KARNUT

Posted
Posted
5 minutes ago, KARNUT said:

On my GM I bought an extractor and pulled out through the dipstick. I measured out and put the same amount in. I did it twice one week apart. I wouldn’t flush any transmission. All my vehicles are on a 30K drain and fill. With the transmission if the fluid is bad you can smell it. 

I just looked it up and it appears there’s no dipstick. You have to go under, yikes. 

  • Like 1
UrbanRage Enthusiast

UrbanRage

Posted
Posted

It’s really frustrating not having a dipstick. What the hell was GM thinking!?  I have the 8L90 which also doesn't have a dipstick, so draining and filling the transmission is quite a hassle. I bought the pump shown below from Amazon, and it made the process of draining and refilling the transmission much easier and far less messy. 

 

https://www.amazon.com/dp/B07N7YV5GN?ref_=ppx_hzsearch_conn_dt_b_fed_asin_title_3&th=1

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