Should I get the transmission fluid changed?

May 9th, 2007, 02:03 PM	#1
throwedoff Regular Join Date: Apr 2007 Location: South Louisiana Posts: 143	Should I get the transmission fluid changed? Long story short, the car has 120k miles on it's automatic and the fluid has never been changed. I've heard from several places that it can do more harm than good to change the fluid if it's never been changed in that amount of time. I always thought this was a myth, but a few transmission shops have told me this. If I do get it changed, should I just get a change or a complete flush? __________________ 1999 GT - CAI, Flowmaster 40s, MAC O/R X-Pipe, 70mm p&p MAC TB, p&p plenum, SCT Xcal2 running 93 octane tune, and heavy ass 20 inch rims.

May 9th, 2007, 02:15 PM	#2
OTreborO Enthusiast Join Date: Apr 2006 Posts: 639	You will be rebuilding it soon anyway, so wait till then You will be rebuilding it soon anyway, so wait till then __________________ "Those who forget the past are condemned to repeat it" Rev. Jim Jones

May 9th, 2007, 02:25 PM

throwedoff

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Re: You will be rebuilding it soon anyway, so wait till then

Originally Posted by OTreborO

You will be rebuilding it soon anyway, so wait till then

Yeah yeah, I know, not smart to go 120k miles without changing tranny fluid, but to be fair, a woman who knew nothing about cars owned the car for 100k miles before me.

I'd like to prolong the life if possible though.

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1999 GT - CAI, Flowmaster 40s, MAC O/R X-Pipe, 70mm p&p MAC TB, p&p plenum,
SCT Xcal2 running 93 octane tune, and heavy ass 20 inch rims.

May 10th, 2007, 01:46 AM

homebrewed

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If ya get the flush, do it all. Get a "force flush" an have 'em throw some BG trans conditioner in it. And change the filter and seal...

You are correct about the more harm than good. The fluid thats in there acts kinda like a varnish and keeps things slippin' an slidin' like they need ta be. With that amount of mileage on it, things are kinda set in their ways and you can run the risk of upsetting the balance of nature, as it were lol...

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Originally Posted by Tony_90fox

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May 10th, 2007, 02:56 AM

throwedoff

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Originally Posted by homebrewed

If ya get the flush, do it all. Get a "force flush" an have 'em throw some BG trans conditioner in it. And change the filter and seal...

You are correct about the more harm than good. The fluid thats in there acts kinda like a varnish and keeps things slippin' an slidin' like they need ta be. With that amount of mileage on it, things are kinda set in their ways and you can run the risk of upsetting the balance of nature, as it were lol...

So would it be worth it to get a force flush, or should I not worry about it?

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1999 GT - CAI, Flowmaster 40s, MAC O/R X-Pipe, 70mm p&p MAC TB, p&p plenum,
SCT Xcal2 running 93 octane tune, and heavy ass 20 inch rims.

May 10th, 2007, 03:33 AM

homebrewed

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'88 LX body '91 GT D/T

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If it ain't slippin' now, and it seems to shift when its suposed to, leave it alone.

One thing you might consider is adding the BG treatment. That stuff is amazing...

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Originally Posted by Tony_90fox

I wish there was a :lickmynuts smiley, because i would use it now
:lickmynuts

May 10th, 2007, 03:45 AM

throwedoff

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Join Date: Apr 2007

Location: South Louisiana

Posts: 143

Originally Posted by homebrewed

If it ain't slippin' now, and it seems to shift when its suposed to, leave it alone.

One thing you might consider is adding the BG treatment. That stuff is amazing...

Doesn't seem to be slipping now, and my shifts still feel damn near perfect.

I'll definitely look into the BG treatment, thanks for the tip!

Edit: What BG product are you talking about? BG ATC Plus?

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1999 GT - CAI, Flowmaster 40s, MAC O/R X-Pipe, 70mm p&p MAC TB, p&p plenum,
SCT Xcal2 running 93 octane tune, and heavy ass 20 inch rims.

June 13th, 2007, 12:39 PM

Juggalo_X

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Re: Should I get the transmission fluid changed?

Originally Posted by throwedoff

Long story short, the car has 120k miles on it's automatic and the fluid has never been changed.

I've heard from several places that it can do more harm than good to change the fluid if it's never been changed in that amount of time. I always thought this was a myth, but a few transmission shops have told me this.

If I do get it changed, should I just get a change or a complete flush?

i would not change it at this point you have let it go to long. They are correct in not recommending a change, the reason behind this is that your tranny has worn its self and the friction its creating is now actually helping it rather then harming it. If you flush the fluid now you may find that youve reduced the friction and that the tranny will develop a severe slip. The new tranny fluid will also probably cause a seal leak at this point if there isnt already one present. Transmission fluid has a high detergent quality to it.

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Originally Posted by drgnracin72

fat girls dont expect dick, they apreciate it...

̿̿ ̿ ̿̿'̿'\̵͇̿̿\=(•̪●)=/̵͇̿̿/'̿'̿ ̿̿

June 13th, 2007, 03:52 PM

Katen

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If it ain't slippin' now, and it seems to shift when its suposed to, leave it alone.

that is not a smart thing to do. also the myth is wrong it will not hurt your tranny, you just need to get it completly flushed. then have the cvi reset. the tranny will then relearn how you drive an how much fluid will go throught the cvi.

June 13th, 2007, 04:00 PM

#10

Juggalo_X

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Originally Posted by Katen

If it ain't slippin' now, and it seems to shift when its suposed to, leave it alone.

that is not a smart thing to do. also the myth is wrong it will not hurt your tranny, you just need to get it completly flushed. then have the cvi reset. the tranny will then relearn how you drive an how much fluid will go throught the cvi.

no its not a myth, i had a ford transmission technician tell me not to change the tranny fluid in my tempo because i let it go for almost 200k said it would probably cause alot of problems. so i did it any ways. and yes it slipped alot. the reason was the valve body was so worn from the old fluid and it has gummed up so it was functioning properly, as soon as i changed the fluid all the gunk and varnish was washed away by the new fluid and instant issues arose. lucky me we stole the tranny from my buddies topaz

and then i retired the beast.

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Originally Posted by drgnracin72

fat girls dont expect dick, they apreciate it...

̿̿ ̿ ̿̿'̿'\̵͇̿̿\=(•̪●)=/̵͇̿̿/'̿'̿ ̿̿

June 13th, 2007, 04:14 PM	#11
Katen Regular 1973 Coupe Mustang pft if i know Join Date: Jan 2007 Location: Defiance, Ohio Posts: 109	but their is a 100k differeance. so it didnt work for you but it could work for the whom ever started the topic.

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