I found out that many drag car uses much THICKer oil on their differetial.
These oil(heard that they are more of silicon based oil) can absorb shocks to rear diff by minimizing back leash.
But I heard that they are so thick that it increases gear friction.

Anyone tried this?
JDM oil company called Omega has very high velocity(something like 90-115) gear oil and I was wondering trying out those to protect my rear diff.

Any comments?

 

What you say is correct. The thicker oil will reduce gear shock. The problem is that a drag race it is 1/4 mile. The thicker silicone based oils can't be used for daily driving. If your car is a drag car go for it....

Utah

 

This would be like Redline Shockproof correct?

 

wondering...why cant be used as daily driver?

 

No one is saying you "can't" use it; just probably wouldn't be a wise move.

The LE 607 diff fluid has more than enough shock absorption and meets OEM specs.

Check this thread out...read the first post:

http://forums.s2ki.com/forums/index.php?showtopic=185775

 

hmmm... I wonder why honda makes recommends specifically which type of oil to use?

 

Perhaps I'm not understanding what you're saying but all manufacturers specify what grade to use in their differentials.

 

why would they do that?

 

Cause they are right, is I think what 1a-race is getting at. In a very sarcastic way. :-p

 

there have been diff failures from people even after switching to LE 607.