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2005 cobalt Transmission fluid.... #5136140 06/16/19 08:22 PM
Joined: Mar 2019
Posts: 26
J
Jcountry Offline OP
OP Offline
J
Joined: Mar 2019
Posts: 26
Hi-

Thinking about changing ATD on my wife's 2005 cobalt.

Not sure if it is worth the trouble.

Car had 215k, and had a tranny rebuild at about 170k.

I'm trying to make it last a little longer, but I'm not sure whether it's a good idea to fool with a change on a rebuilt transmission at this point (might jinx the car) smile

Anyhow, if I decide to fool with it, what brand of ATF and filter would be good? (I know GM sometimes updates fluid recommendations for older transmissions like this, but I don't have access to service data.)

Re: 2005 cobalt Transmission fluid.... [Re: Jcountry] #5136212 06/16/19 10:30 PM
Joined: Feb 2009
Posts: 17,742
D
daves87rs Offline
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D
Joined: Feb 2009
Posts: 17,742
Max life ATF


2019 Chevrolet Equinox LS
2006 Chevrolet Cobalt LS
Re: 2005 cobalt Transmission fluid.... [Re: Jcountry] #5136243 06/17/19 12:16 AM
Joined: Jan 2006
Posts: 585
D
drtyler Offline
Offline
D
Joined: Jan 2006
Posts: 585
Dexron VI or Maxlife. Used both in our Cobalt for its entire 315k mile life.

Original trans died around 30k. Used transmission installed and it lasted until 285k. Fluid changes done at 100k (Maxlife) and 200k (Dexron VI). At 285k, transmission solenoid failure, and replaced with another used transmission, which lasted until the car was in an accident at 315k.




Re: 2005 cobalt Transmission fluid.... [Re: Jcountry] #5136729 06/17/19 02:21 PM
Joined: Jul 2005
Posts: 12,896
dave1251 Offline
Offline
Joined: Jul 2005
Posts: 12,896
DEXRON VI or Maxlife like previous posters have stated.


make the inside of your engine oil cap white.
don't use.
Re: 2005 cobalt Transmission fluid.... [Re: Jcountry] #5136900 06/17/19 05:15 PM
Joined: Mar 2008
Posts: 9,278
S
slacktide_bitog Offline
Offline
S
Joined: Mar 2008
Posts: 9,278
Another vote for Maxlife thumbsup

If your transmission doesn't have a drain plug, I would also suggest you get an aftermarket pan that has one smile

Re: 2005 cobalt Transmission fluid.... [Re: Jcountry] #5136931 06/17/19 05:49 PM
Joined: Mar 2019
Posts: 26
J
Jcountry Offline OP
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J
Joined: Mar 2019
Posts: 26
Thanks all!

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