[Electric]

Two eDiff questions:

1. I've seen somewhere online that the diff fluid has to be changed after first 500 miles. Yet, I don't see that requirement anywhere in the owners manual. And I can no longer find that thread. Could someone confirm that the fluid either does or does not have to be changed after the first 500 miles?

2. Is there any reason I should not used Track mode on the street, from the eDiff longevity standpoint?

Thanks in advance!

[Jastone]

Here's one I found. Don't know if this is the one you were looking for. Some different interpretations of what the manual is saying in regards to service intervals. Pretty cut and dry to me though.

http://www.camaro6.com/forums/showthread.php?t=496778

[dotfiles]

I changed my differential fluid at 1500 miles. I would definitely do it at that point as it was filthy and my drain plug had plenty of metal shavings on it.

Track mode on the street isn't a problem for the diff. Track mode doesn't actually make the eLSD settings more aggressive until you get into PTM sport 1 or higher I believe anyway. Unless you're flooring it in first out of corners every day in race mode the eLSD should be just fine in terms of wear. Using stabilitrack competitive mode will lock the diff earlier than normal as well and there is no literature that suggests using either of these modes will result in early eLSD failure.

[Jastone]

Again, please don't confuse the eDiff (hydraulic) fluid with gear oil (conventional GM gear oil). The rear DOES require a gear oil change after 1500 miles and before the first track day. EDiff (hydraulic) is different.

[dotfiles]

Originally Posted by Jastone

Again, please don't confuse the eDiff (hydraulic) fluid with gear oil (conventional GM gear oil). The rear DOES require a gear oil change after 1500 miles and before the first track day. EDiff (hydraulic) is different.

Yep, differential fluid (gear oil) change is a necessity IMO after seeing mine.

[TrackClub]

Originally Posted by Jastone

Again, please don't confuse the eDiff (hydraulic) fluid with gear oil (conventional GM gear oil). The rear DOES require a gear oil change after 1500 miles and before the first track day. EDiff (hydraulic) is different.

Actually, the manual calls for a diff (not e-diff) fluid change AFTER a first track day. But, I did mine before and after. FYI a dealer may quote ya $200+
for this service, because they confuse it with a full service which includes opening up the diff, cleaning the gears and changing the gasket. If so tell them ONLY fluid change is required and that should cost $60-70 bucks.

[Jastone]

That's true. I changed before and after. Though the point of my post was to reaffirm the difference between the eDiff (hydraulic) and the gear oil. Don't get them confused

[Electric]

Ok, thank for the information. I was wondering why there are two types of fluid necessary for the differential.

[Subcool]

My 2013 ss required an additive for the real diff. Fluid does this one need it also or do you just use gear oil

[Jastone]

This is what the manual calls for


Dexron LS Gear Oil (GM Part No. 88862624, in Canada 88862625).

[SaphfireSS]

Originally Posted by Jastone

This is what the manual calls for


Dexron LS Gear Oil (GM Part No. 88862624, in Canada 88862625).

That had the additive in it. Says it right on the bottle. And from my experience it is vital to change after break in. As I too saw a lot of metal particles on magnetic plugs. (Both of them) and it never hurts to change it more frequently than called out. Just to be on the safe side. As this is a weak point of our rear diffs.