[Z06] Trans and Diff fluids???
Thread Starter
Le Mans Master
Joined: Aug 2005
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From: DP(oh you know where) IL
St. Jude Donor '06
Trans and Diff fluids???
As long as the car is up in the air, im gonna be changing the trans and diff fluids. What do you guys use and what are the weights for each and how many quarts? Search Button isnt working and I dont have a manual. Thanks for all the help and suggestions in advance
Dave
Dave
Last edited by DPG; Nov 13, 2005 at 04:16 PM.
Le Mans Master
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Originally Posted by DPG
As long as the car is up in the air, im gonna be changing the trans and diff fluids. What do you guys use and what are the weights for each and how many quarts? Search Button isnt working and I dont have a manual. Thanks for all the help and suggestions in advance
Dave
Dave
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Joined: Aug 2001
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From: King George VA
Diff takes 1.69 quarts of synthetic 75w90 with 4 oz of friction modifier. Some good fluids such as AMSOIL and Redline 75w90 come with the friction modifier pre-mixed in (note Redline 75w90NS does not have the additive).
I use: AMSOIL Severe Gear Extreme Pressure Synthetic 75w90
Tranny takes just under 4 quarts of fluid meeting GM Dexron III specifications, which is normally an ATF. I use: AMSOIL ATF
I use: AMSOIL Severe Gear Extreme Pressure Synthetic 75w90
Tranny takes just under 4 quarts of fluid meeting GM Dexron III specifications, which is normally an ATF. I use: AMSOIL ATF
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Thread Starter
Le Mans Master
Joined: Aug 2005
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From: DP(oh you know where) IL
St. Jude Donor '06
Thanks for your help guys. I got access to a lift today at my old high school. Took about 20 mins for me to pull into the stall and get my car onto the lift cause im so low. Had to use boards to get into the bay doors and then more boards to get onto a 4 post lift along with jacking up the rear end once the front was on and we just pushed the rest of the car onto the lift. It was interesting lets say. Diff, trans, motor oil where easy to change. Coolant flush and refill was pretty messy, cause when we were draining there was a lot of splash back. Now onto the the brake system flush. We ran denatured alcohol through the system first to get all the old crap out. And then added the fresh stuff. Let me tell you that this took longer than expected. And used more brake fluid then we thought as well. It only took about half a quart to flush the system with the alcohol and it took about a little over a quart and a half to get the alcohol out. But all in all, my baby is ready for winter 
Good luck on al your winterizings
Dave
Good luck on al your winterizings
Dave
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Joined: Aug 2001
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From: King George VA
Glad to see you got the maintenance done, but sorry to see you had to "winterize" it.
I wish I had a lift in my garage... one of these days I'll retire and break down and buy one.
I wish I had a lift in my garage... one of these days I'll retire and break down and buy one.
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Thread Starter
Le Mans Master
Joined: Aug 2005
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From: DP(oh you know where) IL
St. Jude Donor '06
Originally Posted by pb24dagrk
i have 18k miles on my z06
when should i look to change the diff and tranny fluids?
when should i look to change the diff and tranny fluids?
no clu, but i figured as long as im under there, might as well change em all. Ive got 31,000 miles. When i changed my diff adn tranny, i was happy to see it was clean of metal shavings
Melting Slicks
Joined: Sep 2003
Posts: 2,911
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From: Augusta GA
St. Jude Donor '05-'06
Great info and good maintenance! I have 4 quarts of RP in my truck waiting to change out this week, after my line lock arrives (shift light too). Good winter work but it has been so nice here... seems like fall.
Dave
Dave
Tech Contributor
Joined: Dec 1999
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From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
Dave
You stated " It only took about half a quart to flush the system with the alcohol and it took about a little over a quart and a half to get the alcohol out. But all in all, my baby is ready for winter
Where did you read that alcohol can be used to flush a C5 ABS brake system? I thought that just flushing it through with new dot 4 fluid was good enough.
Please let me know if this is a GM aproved method of brake system maintenance. I have to flush mine SOON!
Thanks
Bill
You stated " It only took about half a quart to flush the system with the alcohol and it took about a little over a quart and a half to get the alcohol out. But all in all, my baby is ready for winter
Where did you read that alcohol can be used to flush a C5 ABS brake system? I thought that just flushing it through with new dot 4 fluid was good enough.
Please let me know if this is a GM aproved method of brake system maintenance. I have to flush mine SOON!
Thanks
Bill