Transmission flush vs drain & fill, opinions wanted

[3rd Rail]

Any part store will have it. Napa part number 75-200

Thank you!

 

[3rd Rail]

While dex 6 supersedes any dexrons previous to it, Id run 3 if thats what you’ve been using. You’re always safe to run the oem type. But changing to synthetic at 210k might be risky. You can get dex 3 all day at walmart.

Walmart is nearby, so I’ll see what they’ve got on the shelf. Napa is 15 mins further.
Online I see Castrol, Mobile, Valvoline, and then some others that aren’t as expensive. Eventually found some AC Delco Dex 3 on Amazon for $15/qt.
Thanks for your advice.

 

[MRM]

That is stupid high for dex3. Just use the vi.

 

[harrycalahan]

 

[3rd Rail]

Drain plug is seized. Don’t want to totally mess up the bolt head. Should I try it hot or find a pro?

 

[Trouble]

Ive got 330,000 on drain and fill

2 other vehicles the trans went out weeks after a flush

 

[MRM]

Drain plug is seized. Don’t want to totally mess up the bolt head. Should I try it hot or find a pro?

I'd buy a new drain plug and after you get it in then put the heat and some force to it.
I'd just make sure to be going counter clockwise. I broke off a bleeder and bought a couple calipers that way once.

 

[3rd Rail]

Searched and found these drain plugs don’t come out easily - numerous threads about this very thing.
Most just drop the pan. Have to unbolt the exhaust at 2 points, unbolt Torx or bend the shifter cable bracket, remove pan and it’s 17 bolts. May as well change the filter too.
Think I’ll find a shop to do this.