Transmission fluid change on 05 SS/SC
12-26-2007, 11:29 AM
#1
Senior Member
Thread Starter
Join Date: 06-14-05
Location: New Jersey
Posts: 918
Likes: 0
Received 0 Likes
on
0 Posts
Transmission fluid change on 05 SS/SC
I have over 50k miles and was figuring its about time.
Any tips or tricks on getting it done? Any recommendations on the best replacement fluid?
Thanks,
Rich
Any tips or tricks on getting it done? Any recommendations on the best replacement fluid?
Thanks,
Rich
12-27-2007, 12:47 AM
#4
if you have jackstands you can do it.
-after jacking the car up, remove the drivers side tire
-remove the fill plug located on the side of the tranny by the diff
-remove the drainplug
-once the fluid is drained, reinstall the drainplug
-use a flexible funnel, or rig a hose up on the bottle of oil so you can fill it
-when oil starts running back out the fill plug its full
most people say to use royal purple, i beleive its syncro max (not syncromesh), the manual transmission fluid that is 75w90.
-after jacking the car up, remove the drivers side tire
-remove the fill plug located on the side of the tranny by the diff
-remove the drainplug
-once the fluid is drained, reinstall the drainplug
-use a flexible funnel, or rig a hose up on the bottle of oil so you can fill it
-when oil starts running back out the fill plug its full
most people say to use royal purple, i beleive its syncro max (not syncromesh), the manual transmission fluid that is 75w90.
12-27-2007, 12:56 AM
#5
Banned
Join Date: 04-08-07
Location: USA
Posts: 3,870
Likes: 0
Received 0 Likes
on
0 Posts
if you have jackstands you can do it.
-after jacking the car up, remove the drivers side tire
-remove the fill plug located on the side of the tranny by the diff
-remove the drainplug
-once the fluid is drained, reinstall the drainplug
-use a flexible funnel, or rig a hose up on the bottle of oil so you can fill it
-when oil starts running back out the fill plug its full
most people say to use royal purple, i beleive its syncro max (not syncromesh), the manual transmission fluid that is 75w90.
-after jacking the car up, remove the drivers side tire
-remove the fill plug located on the side of the tranny by the diff
-remove the drainplug
-once the fluid is drained, reinstall the drainplug
-use a flexible funnel, or rig a hose up on the bottle of oil so you can fill it
-when oil starts running back out the fill plug its full
most people say to use royal purple, i beleive its syncro max (not syncromesh), the manual transmission fluid that is 75w90.
Last edited by jsscooby; 12-27-2007 at 12:56 AM. Reason: Automerged Doublepost
12-27-2007, 07:20 AM
#7
Senior Member
Join Date: 07-08-05
Location: Niceville, FL
Posts: 6,200
Likes: 0
Received 0 Likes
on
0 Posts
Royal Purple Max Gear 75W-90! This is the only Royal Purple product that meets the GL-4 requirement period. It is far superior to GM's $12-15/quart ****. It has a shockproofing agent, LSD additives, and allows the tranny to shift so much smoother than before. Hands down a damn good investment! 
Changing it is really easy, just follow the steps given above. Easily do able by a novice on here, just don't strip out the hex slot in the plug.
Changing it is really easy, just follow the steps given above. Easily do able by a novice on here, just don't strip out the hex slot in the plug.
01-01-2008, 06:03 AM
#10
Senior Member
Join Date: 07-08-05
Location: Niceville, FL
Posts: 6,200
Likes: 0
Received 0 Likes
on
0 Posts
I wan't my second sticky mods! 
03-10-2008, 09:57 PM
#13
Senior Member
Join Date: 08-28-07
Location: Middletown, NY
Posts: 3,186
Likes: 0
Received 0 Likes
on
0 Posts
03-11-2008, 12:02 AM
#15
Senior Member
Join Date: 06-23-05
Location: Cleveland, Ohio
Posts: 502
Likes: 0
Received 0 Likes
on
0 Posts
I have been running Royal Purple since last summer and love it...smooth shifting action even in the very cold temps we have been having in Cleveland.
Easy to swap it out, drain and fill. One thing to know, you will need to cut down the allen key to get the drain plug out due to the plugs close proximity to the engine cradle...I think it's an 8mm key. Also, it will be helpful to have a 10-12 inch piece of pipe around to use as a breaker bar as it takes quite a tug to break the plugs free...once free they come out easy. A funnel with a long piece of plastic tube will make it easier to put the new fluid in.
Easy to swap it out, drain and fill. One thing to know, you will need to cut down the allen key to get the drain plug out due to the plugs close proximity to the engine cradle...I think it's an 8mm key. Also, it will be helpful to have a 10-12 inch piece of pipe around to use as a breaker bar as it takes quite a tug to break the plugs free...once free they come out easy. A funnel with a long piece of plastic tube will make it easier to put the new fluid in.
09-19-2009, 09:19 PM
#21
Senior Member
Join Date: 02-08-09
Location: Orange County CA
Posts: 588
Likes: 0
Received 0 Likes
on
0 Posts
Ok this mechanic I went to for the first time did ATF (I think he thought I upgraded a cobalt all on my own? lol) Now im worried. So i need part # 21018899 from searching around. Does anyone have any official GM documentation on a 05 ss/sc needed fluid for the trans? Im going to have to call them and have them replace it and really dont want to be bull ****'d or whatnot... and would like to provide info from an official source that I could print out or whatever
09-19-2009, 09:49 PM
#22
just head to the dealers parts department, tell them you have a 2005 cobalt ss supercharged and that you need 2l of fluid for the transmission. they can look it up on their system, itll tell them its not dexron III and that it is manual transmission fluid.
