is this true??

got some to put in my rear after the girdle install...just need to know if it needs the additive. could find anything on the bottle

 

No. I just serviced mine with BG 75/140 and Chrysler ltd slip additive.

 

M1 has additive in it, says so on the bottle.

 

Go ahead and trust it.

 

get the GM stuff, dont **** around.

 

Is it really necessary to add it, if it says it already has it?And aren't the Auburns the only ones that need it, which only came in SS's? Somebody please correct me if i'm wrong.

 

It's the other way around. Standard f-bodies came with Auburns and SS / Firehawks and perhaps some other optioned cars came with the Torsen.

Auburns definitely need it or the clutches slip. GM recommends it in the Torsen and it's cheap insurance at about $6 a bottle

 

standard f bodies came with zexel torsens
the aburn was an option and yes on the aburns have lsd addative

 

IF he has an Auburn he definitely MUST add the friction modifier (preferrably the GM), and he SHOULD NOT USE synthetic gear oil, hence NO Mobil 1 (it IS OK IF he has a Torsen T-1)!!!!

 

I'm pretty sure you have it wrong. As per this sticky https://ls1tech.com/forums/new-ls1-owners-newbie-tech/213148-jrp-s-faq-commonly-asked-questions.html
Anybody else know for sure?

 

what's wrong with synthetic??

this is on a standard option z28...nothing fancy

 

Either way you hurt nothing adding the additive.......

 

Exactly

 

So 99+ are torsens?