Would changing the transmission fluid help with overheating?
Thread Starter
Instructor
Joined: Mar 2015
Posts: 113
Likes: 3
Would changing the transmission fluid help with overheating?
I have a 2015 Corvette Z51 with A8 transmission and as you all know, it overheats on the track. Since the advisor at the dealership won't be likely to be able to do anything about it, I'm wondering if it's worth asking the dealer to change the transmission oil for a cost.
I asked this because an owner of Z06 told me that it helps a bit when we both on track. And also I find that on my first track day it begins to deny my shift at 277F, while the 2nd, it started at 256F, i.e. threshold lower.
So I'm wondering if changing transmission oil would help.And what could be the reasonable cost
I asked this because an owner of Z06 told me that it helps a bit when we both on track. And also I find that on my first track day it begins to deny my shift at 277F, while the 2nd, it started at 256F, i.e. threshold lower.
So I'm wondering if changing transmission oil would help.And what could be the reasonable cost
Melting Slicks
Joined: Nov 2013
Posts: 2,016
Likes: 73
From: Texas
Unless the fluid got so hot as to damage/change its properties, no. Don't know how much heat the Dexron VI will tolerate before breakdown.
I don't know what dealers charge to change the fluid in a C7 but the local GMC dealer charges $250 to do the 6-speed auto in my Pontiac G8GT. It takes 7 qts of Dexron VI at something like $7/qt at local stores, counting filter and labor costs.
Good luck. Don
I don't know what dealers charge to change the fluid in a C7 but the local GMC dealer charges $250 to do the 6-speed auto in my Pontiac G8GT. It takes 7 qts of Dexron VI at something like $7/qt at local stores, counting filter and labor costs.
Good luck. Don
Drifting
Joined: Oct 2014
Posts: 1,673
Likes: 199
I have a 2015 Corvette Z51 with A8 transmission and as you all know, it overheats on the track. Since the advisor at the dealership won't be likely to be able to do anything about it, I'm wondering if it's worth asking the dealer to change the transmission oil for a cost.
I asked this because an owner of Z06 told me that it helps a bit when we both on track. And also I find that on my first track day it begins to deny my shift at 277F, while the 2nd, it started at 256F, i.e. threshold lower.
So I'm wondering if changing transmission oil would help.And what could be the reasonable cost
I asked this because an owner of Z06 told me that it helps a bit when we both on track. And also I find that on my first track day it begins to deny my shift at 277F, while the 2nd, it started at 256F, i.e. threshold lower.
So I'm wondering if changing transmission oil would help.And what could be the reasonable cost
https://www.corvetteforum.com/forums...n-coolers.html
Dazed Confused & Verklemp
Joined: May 2008
Posts: 1,400
Likes: 110
From: Naples, FL & Clear Lake, IA
Unless the fluid got so hot as to damage/change its properties, no. Don't know how much heat the Dexron VI will tolerate before breakdown.
I don't know what dealers charge to change the fluid in a C7 but the local GMC dealer charges $250 to do the 6-speed auto in my Pontiac G8GT. It takes 7 qts of Dexron VI at something like $7/qt at local stores, counting filter and labor costs.
Good luck. Don
I don't know what dealers charge to change the fluid in a C7 but the local GMC dealer charges $250 to do the 6-speed auto in my Pontiac G8GT. It takes 7 qts of Dexron VI at something like $7/qt at local stores, counting filter and labor costs.
Good luck. Don
Drifting
Joined: Oct 2014
Posts: 1,673
Likes: 199
Actually 2015 is more expensive. 11 quarts and the 2015 uses special fluid that is $36 a quart. Form there you add couple of hours for labor and you will end up at close to $600
Dazed Confused & Verklemp
Joined: May 2008
Posts: 1,400
Likes: 110
From: Naples, FL & Clear Lake, IA
But he was talking about his G8. If... or when a larger pan is available for the A8, it should help in reducing tranny temps. Also, hopefully someone will design a plug and play front tranny cooler that doesn't cost an arm and a leg.
Thread Starter
Instructor
Joined: Mar 2015
Posts: 113
Likes: 3
Don't do it. I have looked into this. The A8 is built around the use of thinner fluid. Check out some of my threads on A8 overheating and there something in the pipe line from GM which will arrive in two months or so. See post #14 on below thread
https://www.corvetteforum.com/forums...n-coolers.html
https://www.corvetteforum.com/forums...n-coolers.html
Burning Brakes
Joined: Aug 2007
Posts: 790
Likes: 24
From: Pensacola FL
True statement me and Ali dealing with samething. He's great person to talk to, has helped me out a lot.
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