Triple Flush
Race Director
Joined: Apr 2014
Posts: 10,409
Likes: 1,710
From: North Texas
My understanding is that whether you feel it or not, the old fluid is not good for torque converter and transmission component performance/life. I recommend that you get the triple flush.
Team Owner
Joined: Jul 2004
Posts: 28,430
Likes: 3,279
From: Hartford WI
Team Owner
Joined: Jul 2004
Posts: 28,430
Likes: 3,279
From: Hartford WI
We don't have a shuTTer so no issues there. As to the shuDDer issue, it may not show signs until it is bad enough. So I wouldn't wait since it could be damaging stuff BEFORE you notice it.
Team Owner
Joined: Sep 2000
Posts: 25,004
Likes: 2,706
From: Far NW 'burbs of Chicago
St. Jude Donor '13
When the triple flush bulletin first came out, it specifically stated that the only "diagnosis" to be performed was the owner stating that he was experiencing the shudder. If the car was still under the original powertrain warranty (5 yrs/50k miles?), it was done at no charge.
Team Owner
Joined: Jul 2004
Posts: 28,430
Likes: 3,279
From: Hartford WI
The word from our Corvette tech and others is that the original fluid will eventually cause damage to the tranny, but nobody can predict how soon and how much.
When the triple flush bulletin first came out, it specifically stated that the only "diagnosis" to be performed was the owner stating that he was experiencing the shudder. If the car was still under the original powertrain warranty (5 yrs/50k miles?), it was done at no charge.
When the triple flush bulletin first came out, it specifically stated that the only "diagnosis" to be performed was the owner stating that he was experiencing the shudder. If the car was still under the original powertrain warranty (5 yrs/50k miles?), it was done at no charge.
Melting Slicks
Joined: May 2013
Posts: 3,013
Likes: 1,431
From: New Jersey
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St. Jude Donor '25
Well said. If you don't have any history of changing your fluids, get them done. At this point, the newest C7 is going on 7 years old, IT IS TIME!!
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Team Owner
Joined: Jul 2004
Posts: 28,430
Likes: 3,279
From: Hartford WI
I don't really like the history part. I don't buy new cars. I buy them a few years old and I go by "it flows, it goes". I got no faith in the PO.
Intermediate
Joined: Apr 2018
Posts: 48
Likes: 30
From: Dallas Texas
If you believe the people who do fluid testing for a living, atf should be changed every 30k regardless of what the marketing droids at the manufacturer claim. That’s assuming you care about keeping your car/transmission for a long time of course. Point being that at 26k miles you’re close to being due for a proper service anyway so why not just get the triple flush and call it done.
Team Owner
Joined: Jul 2004
Posts: 28,430
Likes: 3,279
From: Hartford WI
If you believe the people who do fluid testing for a living, atf should be changed every 30k regardless of what the marketing droids at the manufacturer claim. That’s assuming you care about keeping your car/transmission for a long time of course. Point being that at 26k miles you’re close to being due for a proper service anyway so why not just get the triple flush and call it done.
Is 30 miles a lot for the oil? If the car gets it a quarter mile at a time, absolutely. 3000 miles with the cruise control set at 55? No worries. Best way to be sure for YOUR driving conditions is to test it.