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post #1 of 8 (permalink) Old 06-16-2013, 08:15 AM Thread Starter
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Transmission Flush, or Fluid Change?

My fiance's cobalt just turned 106K miles. She had some warranty work done around 58K miles, and as a result of that they replaced an axle seal. I looked at the print out and it says replace 6 quarts of transmission fluid. so now on that new transmission fluid, there is about 50K miles on it. I didnt see anything about changing the filter or pan gasket. so here is my question:

do i replace just the fluid again since there is so many miles on the transmission or do i replace the filter too? I'm 99% sure i don't want to flush this transmission with this many miles...

the last 2 automatics i had, i had the filters replaced and a flush at the same time and in less than 5K miles, both transmission were shot. both were also done at around 105K miles. RIght now the car shifts and operates perfect, absolutely no issues with the transmission at all. i'm looking at doing this just as preventative maintenance, but i'm not sure which route would be best at this point. She still owes money on the car, and she just borrwed some money from the bank to get all of the suspension work done that was needed on the car. she definitely can't afford a tranny rebuild right now so i'm really up in the air on what is the best route to take.

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post #2 of 8 (permalink) Old 06-19-2013, 10:10 AM Thread Starter
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no opinions?

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post #3 of 8 (permalink) Old 06-19-2013, 10:13 AM
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If the fluid is newer like you say, and its running perfectly as well, Im not sure id risk it in the name of preventative maintenance. I changed my tranny fluid and filter around 90k miles(Im at 105k now) and it was still red and looked to have plenty of life left in it.

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post #4 of 8 (permalink) Old 06-19-2013, 10:37 AM
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Could always just do a drain/ fill about 3 times and that will replace almost all the fluid without doing a flush

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post #5 of 8 (permalink) Old 06-19-2013, 11:09 AM
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I like the way you think money man.


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post #6 of 8 (permalink) Old 06-19-2013, 11:33 AM Thread Starter
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Quote:
Originally Posted by GpB311 View Post
If the fluid is newer like you say, and its running perfectly as well, Im not sure id risk it in the name of preventative maintenance. I changed my tranny fluid and filter around 90k miles(Im at 105k now) and it was still red and looked to have plenty of life left in it.
i pulled the check plug to see the level of the fluid earlier this year. a little came out so it was full, but it was also very red still. maybe i should just leave it be and not mess with it.

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post #7 of 8 (permalink) Old 06-19-2013, 03:23 PM
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Quote:
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I like the way you think money man.
I can see we're going to get along just fine

pretty sure if your transmission takes dex 6, which is in most gm vehicles 2006+ then the change interval is 100k miles anyway so you should be good. IMO there is nothing wrong with preventative maintenance and I strongly push people to do early maintenance.

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post #8 of 8 (permalink) Old 06-19-2013, 07:49 PM
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I prefer to do a filter change... I was always told it's good to see the pan and make sure there aren't metal shavings or anything on the magnet.

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