C5 Differential Fluid
Thread Starter
Drifting
Joined: Apr 2009
Posts: 1,631
Likes: 0
From: Pocatello Idaho
C5 Differential Fluid
Is the fluid in the differential of the C5 the same as that used in the C6? I recently purchased a 03 Z06 and am going to replace all of the fluids. I found info on replacing the diff fluid for the C6 but nothing specific on the C5.
Thanks.
Thanks.
Instructor
Joined: Feb 2009
Posts: 213
Likes: 0
From: Diamond Bar CA
Diff fluid
Use any SAE 75W-90 Synthetic Axle Lubricant meeting GM Specs 9986115. Also add 4 ounces of LImited Slip Axle lube additive.
You can probably get some Mobil 1 75W-90 LS from a local parts store for like $8 or $9 a bottle and you will need 2 bottles. Make sure the bottle has the "LS" on it. It stands for "limited slip", therefore you dont need to add the 4 ounces of limited slip additive. This is what I use and I dont have any problems. Good luck
You can probably get some Mobil 1 75W-90 LS from a local parts store for like $8 or $9 a bottle and you will need 2 bottles. Make sure the bottle has the "LS" on it. It stands for "limited slip", therefore you dont need to add the 4 ounces of limited slip additive. This is what I use and I dont have any problems. Good luck
Burning Brakes
Joined: Oct 2008
Posts: 1,062
Likes: 2
From: Minnesota City MN
Talk to gene culley at GMPARTSHOUSE a vendor on the forum. He set me up. He said to go with the new C6 fluid that has the friction modifier in it. Get two bottles and your set. no need to measure two fluids.
Intermediate
Joined: Oct 2005
Posts: 42
Likes: 0
From: Wilmington Delawhere
I just did (diff and tranny) this past weekend.
Make sure you get a handpump as there is no room to pour from the bottles.
I paid $4.09 for onr from Auto zone and it worked perfectly with the Amsoil bottles.
The grinding from the rear during tight turns is gone and it shifts smoother.
Make sure you get a handpump as there is no room to pour from the bottles.
I paid $4.09 for onr from Auto zone and it worked perfectly with the Amsoil bottles.
The grinding from the rear during tight turns is gone and it shifts smoother.
Le Mans Master
Joined: Jan 2004
Posts: 6,801
Likes: 13
From: Anywhere where Cones need hit
Cruise-In 9-10 Veteran
CI-X Auto-X Champ (race tires)
St. Jude Donor '07-'09
+1 on the handpump... it takes a while to do the diff with long tubing and a funnel 
( ask me how I know... )
I'll be getting the hand pump to do the tranny fluid.
I used Redline's 75-90 diff oil. Good tip: Heat the bottles a bit with a hair dryer or something to make the fluid move easier... it will help
( ask me how I know... )
I'll be getting the hand pump to do the tranny fluid.
I used Redline's 75-90 diff oil. Good tip: Heat the bottles a bit with a hair dryer or something to make the fluid move easier... it will help
Intermediate
Joined: Jun 2008
Posts: 34
Likes: 0
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