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View Full Version : Shockproof In Rearend = Bad?

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curt_gendron
06-21-2004, 01:36 PM
Just to throw my 2 cents in......... In the 3/S world, people use 75w-90 Redline gear oil in the rear diff. I've never heard of putting shockproof heavy or MT-90 in there. Its pretty much a no-brainer.

later,
Curt
AJ
06-21-2004, 01:40 PM
75w90 is MT 90.
curt_gendron
06-21-2004, 02:23 PM
Originally posted by DSMStyle@Jun 21 2004, 11:40 AM
75w90 is MT 90.
Nope...
http://3sxperformance.com/images/fluid-redline-oils-500.jpg
JET
06-21-2004, 02:30 PM
He had it backwards, MT-90 is 75w90 (also).
AJ
06-21-2004, 02:33 PM
LOL, yeah what he said.
curt_gendron
06-21-2004, 02:33 PM
Originally posted by JET@Jun 21 2004, 12:30 PM
He had it backwards, MT-90 is 75w90 (also).
Ahh... I see. I've got both bottles in my garage, and they look different. But MT-90 may be the same weight, but not the same product as the Redline 75w-90.

later,
Curt
Kougar
06-21-2004, 06:34 PM
Also, is it true that you shouldn't use synthetics during a "break-in" period? Could it possibly hurt things while they aren't fully in spec or whatever?
1ViciousGSX
06-21-2004, 08:42 PM
Originally posted by Kougar@Jun 21 2004, 04:34 PM
Also, is it true that you shouldn't use synthetics during a "break-in" period? Could it possibly hurt things while they aren't fully in spec or whatever?
You can break-in gears with synthetics, but not an engine.
illz
06-21-2004, 09:36 PM
Originally posted by Kougar@Jun 21 2004, 04:34 PM
Also, is it true that you shouldn't use synthetics during a "break-in" period? Could it possibly hurt things while they aren't fully in spec or whatever?
you need dinosaur oil to seat the rings