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View Poll Results: Flush the clutch material out of the trans or not
flush the trans even if the fluid has 150,000 miles on it 20 68.97%
dont flush it, the broken down material may help the trans last longer 9 31.03%
Voters: 29. You may not vote on this poll

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Old 01-31-2007, 07:28 PM   #51
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Wow yeah, thats darker then mine was. Mine at lest had a bit of a redish tint to it
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Old 01-31-2007, 07:49 PM   #52
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The fluid is oxodised, normal for the miles, but close to burnt... If anything at least change the fluid..

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Old 01-31-2007, 08:30 PM   #53
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I will just add to this thread that I had my '60e transmission flushed on my '96 SE at 117k (fluid was dark red when I bought it) and had absolutely no problems afterwards with 30k of use on it when I sold it.

I just had my '65e transmission flushed on my '02 Aurora 3.5 with 80k, and 4k later I have no problems.

I would agree with the others, if your transmission is in decent shape a flush will not damage anything.

I am, however, surprised at GMs service intervals for transmission fluid, I would think they would reccomend a change every 40k or so.

OK back to the fight! Go go go Badnit!!!
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Old 01-31-2007, 08:39 PM   #54
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CFoote, I agree with you...

But I look at it this way... If you have a 99 Bonneville with a 4T65-E, and you change the fluid like a nut and add a good cooler thats thremostaticly controled, then chances are that you will never burn the trans up.. You will keep it cool as heat is a transmissions worst enemy( don't want it frigid cold either ).... Then keeping that clean fluid will keep all of the additive package properties, keeping all of the seals and clutches happy for a long time to come... Then you go OMG I made it to 200K On the original trans... Wow its 2007, God I love this car...

If the car doesn't fail you won't buy a new one... If they made cars that laster forever they'd be dead in the water..

Keep the fluid changed.. Its good for the trans..

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Old 01-31-2007, 08:44 PM   #55
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Good point Don, keeping the trans cool is CRITICAL....and a reason why everyone should add an auxillary transmission cooler to their cars if it is not already equipped.

OK back to my popcorn! We're waiting on pictures from Badnit.... oh well nevermind that was Hans
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Old 01-31-2007, 09:01 PM   #56
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I don't know if this is adding to the debate but I did a fluid and filter drop on my car and it has 160K on it. 3,500 miles and a 1400 mile road trip and no problems.
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Old 01-31-2007, 09:29 PM   #57
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Let'* think about this from another point of view....

If the transmission already has 150,000, the likelihood of it being around for A LOT longer (especially if you plan to modify the car) is probably slim to none.

Soooo, what'* the point in getting it flushed? Save that money and put it toward the new tranny.

Call me old fashion, but I've never had a tranmssion flush done and never plan to. I still seem to get 200K out of all of my transmissions. Granted, I don't mod or drive the cars hard (other than towing), but I seriously have never understood the benefits. I'm not convinced a flush increases the longevity of inevitable.
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Old 02-01-2007, 12:23 AM   #58
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I agree with Vital49.
Your trani holds 12 liters of fluid including what is in the torque converter. When you drop the pan and change the filter, you will be replacing 7 liters of fluid.

.....and add a cooler

Start saving for a $4000. trani rebuild.
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Old 02-01-2007, 01:02 AM   #59
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My trans fluid has never been changed. I'm going to have a local tranny shop do a full flush next week. I'll let you know how things work out.
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Old 02-01-2007, 01:06 AM   #60
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Your Transmission fluid is Exhausted.
However, your Transmission has adjusted to that fluid, the new stuff will wipe and crap that is stuck on the clutchs away, adding more clearance, which could result in a harder shift, which can result in transmission failure. However, that your mileage, the transmission could be nearing the end, this is just from information that I have gatherd currently and in the past on here and away from here. Some will last much much longer. When mine went, it gave no for warning at all.
Additives are a waste of money, im sorry, I said it, but its true. If you need an additive, you need a mechanical repair.
The fluid in my 97 looked like yours.
I had it flushed 1000 kms later it went.
The fluid in my 93 looked great
I had it flushed, it lasted a full 25 kms before it started to slip into each gear really bad.
They both needed mechanical repairs. Would a flush of prevented that failure? Certainly not. However, I do belive, they may have lasted longer...im not sure...i wish i knew what lotto numbers are winners, but I dont...
4000 for a rebuild? Wow, you guys are spending WAY to much on rebuilds.
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