What oil to use in the rear Diff

[naga]

hey guys i was wondering what oil to use in the rear diff and what number?? also what are the torque specs for the rear diff?

[blazzin1]

I don't have the Owner's Manual in front of me, but it's all in there with the GM part numbers (including the additive). Or some folks are using Royal Purple products, but I'd rather stick with the GM stuff to alleviate any possible warranty issues.

[SSLarry]

Uh...it's all in the manual, dude. Give it a read.

http://www.camaro5.com/forums/showthread.php?t=33993


Rear Axle (V8 Engine)
Rear Differential Fluid 75W-90 Limited Slip to GM Specification 9986226.
GM Part No. U.S. 89021677 and Friction Modifier 1052358,
in Canada 89021678 and Friction Modifier 992694.


Rear Axle
When to Check Lubricant
It is not necessary to regularly
check rear axle fluid unless you
suspect there is a leak or you hear
an unusual noise. A fluid loss could
indicate a problem. Have it inspected
and repaired.
How to Check Lubricant
A. Fill Plug Hole
B. Drain Plug Hole
To get an accurate reading, the
vehicle should be on a level surface.
If the level is below the bottom
of the filler plug hole, add some
lubricant. Add enough lubricant to
raise the level to the bottom of the
filler plug hole.


What to Use
For 218 mm rear drive module
(RDM) V6 manual, V8 automatic
and V8 manual:
To add lubricant when the level
is low, use 75W-90 LS gear oil
(GM Part No. US 89021677
and 1052358, in Canada
Part No. 89021678 and 992694)
meeting GM Specification 9986226.
To completely refill after draining,
see Recommended Fluids and
Lubricants on page 10-7. Then fill
to the bottom of the filler plug hole
with the Synthetic Gear Lubricant.
For 195 mm RDM V6 automatic:
To add lubricant when the level
is low, use 75W-90 gear Oil
(GM Part No. US 89021677,
in Canada Part No. 89021678)
meeting GM Specification 9986115.
To completely refill after draining,
see Recommended Fluids and
Lubricants on page 10-7. Then fill
to the bottom of the filler plug hole
with the Synthetic Gear Lubricant.

[thedak]

Torco RGO is titties.

[Fishdadddy]

I'm gonna use Royal Purple

[Blackhawk6]

Royal Purple

[maxhunter]

Mobil 1 LS

[naga]

hey guys i use royal purple (SAE 5W-30) engin oil on my V8, but I found this behind the bottle and on their web site stating that- Royal Purple Motor Oil delivers superior protection and improves performance in four-cycle gasoline and diesel engines. Does that mean that its only for 4 cyclinder cars and not V8's..

[naga]

Originally Posted by Fishdadddy

I'm gonna use Royal Purple

If your gonna use royal purple why did you go with Mobile 1 engin oil... Im just asking cause i saw an awesome oil change that you did on your car few weeks ago..

[naga]

Originally Posted by SSLarry

Uh...it's all in the manual, dude. Give it a read.

http://www.camaro5.com/forums/showthread.php?t=33993


Rear Axle (V8 Engine)
Rear Differential Fluid 75W-90 Limited Slip to GM Specification 9986226.
GM Part No. U.S. 89021677 and Friction Modifier 1052358,
in Canada 89021678 and Friction Modifier 992694.


Rear Axle
When to Check Lubricant
It is not necessary to regularly
check rear axle fluid unless you
suspect there is a leak or you hear
an unusual noise. A fluid loss could
indicate a problem. Have it inspected
and repaired.
How to Check Lubricant
A. Fill Plug Hole
B. Drain Plug Hole
To get an accurate reading, the
vehicle should be on a level surface.
If the level is below the bottom
of the filler plug hole, add some
lubricant. Add enough lubricant to
raise the level to the bottom of the
filler plug hole.


What to Use
For 218 mm rear drive module
(RDM) V6 manual, V8 automatic
and V8 manual:
To add lubricant when the level
is low, use 75W-90 LS gear oil
(GM Part No. US 89021677
and 1052358, in Canada
Part No. 89021678 and 992694)
meeting GM Specification 9986226.
To completely refill after draining,
see Recommended Fluids and
Lubricants on page 10-7. Then fill
to the bottom of the filler plug hole
with the Synthetic Gear Lubricant.
For 195 mm RDM V6 automatic:
To add lubricant when the level
is low, use 75W-90 gear Oil
(GM Part No. US 89021677,
in Canada Part No. 89021678)
meeting GM Specification 9986115.
To completely refill after draining,
see Recommended Fluids and
Lubricants on page 10-7. Then fill
to the bottom of the filler plug hole
with the Synthetic Gear Lubricant.

Thanks for the Infor helpped alot...

[ackeight]

Originally Posted by naga

hey guys i use royal purple (SAE 5W-30) engin oil on my V8, but I found this behind the bottle and on their web site stating that- Royal Purple Motor Oil delivers superior protection and improves performance in four-cycle gasoline and diesel engines. Does that mean that its only for 4 cyclinder cars and not V8's..

Really???? 4 cycle not 4 cylinder.

[naga]

Originally Posted by ackeight

Really???? 4 cycle not 4 cylinder.

I looked it up and it says that 4 cycle is FOUR-STROKE ENGINE.. so what you mean that 4 cycle not 4 cylinder!!!

[ackeight]

Yes your v8 is fine with that in there. That is what I wrote. Suck squeeze bang blow= 4 cycle.

[naga]

awesome thanks man!!!!