I need this info as well.....
Transmission Service
Thread Starter
Instructor
Joined: Jul 2005
Posts: 159
Likes: 27
From: Sacramento CA
Transmission Service
I finally decided to service my 2002 Z06 myself. I changed the engine oil and installed a CAGS unit. The vehicle has 8K miles on it. Is it worth my time to change the fluid in the transmission with synthetic?? If there is not going to be a noticible difference, I might as well leave it alone. Also, I do not see where the fluid is added in the transmission. The owners manual is not very clear. Where is the filler hole.
Thanks in advance
Thanks in advance
Drifting
Joined: Sep 2003
Posts: 1,363
Likes: 7
From: 1994 LT1 Coupe 6-speed with FX3 & 2000 LS1 Vert 6-Speed with F45 Hunterdon County, NJ
Express,
Whereas I've no experience with the Z06 tranny, generally changing fluid is a good thing, especially early on to get particles left over from manufacturing and the initial wear particles too.
I know when we changed the tranny fluid in our TransAm at about 8-10k, it substantially improved its shifting.
However, to be safe (given the synthetic concern comment), get the tranny fluid from a dealer, at least this time around -- you can always do your research and make a different choice next time.
Whereas I've no experience with the Z06 tranny, generally changing fluid is a good thing, especially early on to get particles left over from manufacturing and the initial wear particles too.
I know when we changed the tranny fluid in our TransAm at about 8-10k, it substantially improved its shifting.
However, to be safe (given the synthetic concern comment), get the tranny fluid from a dealer, at least this time around -- you can always do your research and make a different choice next time.
Pro
Joined: Jun 2005
Posts: 706
Likes: 1
From: Western Canada
Originally Posted by seattle
I saw a post here a couple of weeks ago where someone called the transmission manufacturer and they told him they do not recommend synthetic fluid. Do a search and see if you can find it.
What I recall rightly or wrongly about that post is that Tremec said that the synthetic could cause the disintegration of the carbon fibre blocker rings.
Racer
Joined: Aug 2003
Posts: 281
Likes: 1
From: Clayton North Carolina
Originally Posted by Express
I finally decided to service my 2002 Z06 myself. I changed the engine oil and installed a CAGS unit. The vehicle has 8K miles on it. Is it worth my time to change the fluid in the transmission with synthetic?? If there is not going to be a noticible difference, I might as well leave it alone. Also, I do not see where the fluid is added in the transmission. The owners manual is not very clear. Where is the filler hole.
Thanks in advance
Thanks in advance
Melting Slicks
Joined: Dec 2004
Posts: 3,219
Likes: 1
From: Somerset Co, NJ
Originally Posted by seattle
I saw a post here a couple of weeks ago where someone called the transmission manufacturer and they told him they do not recommend synthetic fluid. Do a search and see if you can find it.
I recall that as well...no synthetic ( I was surprised to read that)As far as filling and draining, do a search, I'm sure you'll find it..or even check the sticky threads at the top of the C5Tech section
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Instructor
Joined: Oct 2005
Posts: 233
Likes: 0
From: Knoxville TN
I know for us regular C5 owners you have to remove the Temperature Sensor, this acts as the fill plug. The drain in on the lower right hand side of the tranny and uses standard tools to remove it.
The author of my C5 Performance book recommends using synthetic fluid because of heat related issues with the manual. GM went to the trouble of installing a sensor there....so they know heat is an issue. Because of the front air dam and smooth undercar aerodynamics, there is limited cooling air for the tranny and rear diff. You will get a "trans over temp" lite when it gets above 325 degrees.
Hope this is helpful.
The author of my C5 Performance book recommends using synthetic fluid because of heat related issues with the manual. GM went to the trouble of installing a sensor there....so they know heat is an issue. Because of the front air dam and smooth undercar aerodynamics, there is limited cooling air for the tranny and rear diff. You will get a "trans over temp" lite when it gets above 325 degrees.
Hope this is helpful.
Racer
Joined: Apr 2005
Posts: 364
Likes: 0
From: Schertz TX
Originally Posted by Mudlizard
I know for us regular C5 owners you have to remove the Temperature Sensor, this acts as the fill plug. The drain in on the lower right hand side of the tranny and uses standard tools to remove it.
The author of my C5 Performance book recommends using synthetic fluid because of heat related issues with the manual. GM went to the trouble of installing a sensor there....so they know heat is an issue. Because of the front air dam and smooth undercar aerodynamics, there is limited cooling air for the tranny and rear diff. You will get a "trans over temp" lite when it gets above 325 degrees.
Hope this is helpful.
The author of my C5 Performance book recommends using synthetic fluid because of heat related issues with the manual. GM went to the trouble of installing a sensor there....so they know heat is an issue. Because of the front air dam and smooth undercar aerodynamics, there is limited cooling air for the tranny and rear diff. You will get a "trans over temp" lite when it gets above 325 degrees.
Hope this is helpful.
Instructor
Joined: Jan 2004
Posts: 175
Likes: 0
From: Loughborough, UK
Been using Redline D4ATF in my tranny for over 10,000miles.
Upon switching the gear changes sharpened up and trans temps have dropped a few degrees.
All the research I did promoted the use of synthetic fluid, the issue you mention are more relative to the older transmissions that contain 'paper' components!
Upon switching the gear changes sharpened up and trans temps have dropped a few degrees.
All the research I did promoted the use of synthetic fluid, the issue you mention are more relative to the older transmissions that contain 'paper' components!
