Hi, I have a Spoon LSD in my B18c5 tranny. What is the recommended MTF for a clutch type LSD like Spoon? What happens if the wrong MTF is used? I am currently on some castrol MTF and the car feels rough. Will the wrong MTF cause the car to hesitate on the freeway when I go over uneven road surfaces?

 

PM user Walker111. he's got a Cusco clutch type diff. I *think* he used pensoil but i'm not sure exactly.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Dave_B &raquo;</TD></TR><TR><TD CLASS="quote">PM user Walker111. he's got a Cusco clutch type diff. I *think* he used pensoil but i'm not sure exactly.</TD></TR></TABLE>

Thats correct, I use Penzoil Synthetic gear oil 75-90 GL5

 

Redline MTL plus Ford Friction modifier works good also.

I used this with good results when I had my kaaz. I found the kaaz oil to be very notchy on cold mornings while the MTL/Fric. mod remained smooth but also kept the LSD quiet.

 

A gear oil with a friction modifier such as Redline MT-90 (which is what I use), or even regular old Honda MTF with a friction modifier additive will work fine.

 

how about royal purple tranny fluid . i used their engine oil and it works great ,also running their rad coolant additive.

 

where do you guys buy the friction modifier stuff?

 

I have been running without any friction modifier for 10000miles already. Is my LSD in trouble? When I make right turns there's this clicking noise from the right wheel, but there's non for left turns. My CV boots are okay.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by garyc17 &raquo;</TD></TR><TR><TD CLASS="quote">I have been running without any friction modifier for 10000miles already. Is my LSD in trouble?</TD></TR></TABLE>

It could cause premature wear of the disks.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by garyc17 &raquo;</TD></TR><TR><TD CLASS="quote">When I make right turns there's this clicking noise from the right wheel, but there's non for left turns. My CV boots are okay.</TD></TR></TABLE>

That doesn't necessarily mean that the joints are okay.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mugen Mike &raquo;</TD></TR><TR><TD CLASS="quote">A gear oil with a friction modifier such as Redline MT-90 (which is what I use), or even regular old Honda MTF with a friction modifier additive will work fine.</TD></TR></TABLE>

Joo dont run what king recommends?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by walker111 &raquo;</TD></TR><TR><TD CLASS="quote">

Joo dont run what king recommends?</TD></TR></TABLE>

Redline MT-90 is what they recommended.

 

hmmm?? Last time I was on there site they recommended the penzoil..

 

GL-4 synthetic oil (75W-90) or equivalent should be used.

Ok maybe not....

 

Basically how do I know I have used the wrong MTF? LSD chattering noises or what are the symptoms? By the way, the clicking I mentioned when I make right turns, if my CV joint is the fault and I just continue to drive. What might happen?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by garyc17 &raquo;</TD></TR><TR><TD CLASS="quote">Basically how do I know I have used the wrong MTF? LSD chattering noises or what are the symptoms? By the way, the clicking I mentioned when I make right turns, if my CV joint is the fault and I just continue to drive. What might happen?</TD></TR></TABLE>

Your axle will eventually break. More than likely its just the diff...

 

or

 

are you guys talking about using friction modifier on factory LSD or aftermarket LSD?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by realis9 &raquo;</TD></TR><TR><TD CLASS="quote">are you guys talking about using friction modifier on factory LSD or aftermarket LSD?</TD></TR></TABLE>


I'm talking about aftermarket CLUTCH TYPE LSD. Helical shouldn't need a friction modifier, nor should it need this weight oil.....

 

But if it was really only my diff chattering, why does it chatter only on right turns? Is it because the driveshaft is shorter on that side of the car?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by garyc17 &raquo;</TD></TR><TR><TD CLASS="quote">But if it was really only my diff chattering, why does it chatter only on right turns? Is it because the driveshaft is shorter on that side of the car?</TD></TR></TABLE>

Um, the driveshafts are the same length.

 

Opsss. didn't know that the shafts are the same length.. Had an old Mitsubishi and they were of different lengths. So anyone know's why it chatters on right turns only?

 

when I spoke to Kaaz they recommended either their gear oil or regular GLW4 Pennzoil Gear Oil. The gear oil isn't good for the Honda synchros though. Kaaz also strongly warned against using Synthetic Fluids, such as Redline with a Clutch type LSD. What happens is that the synthetic fluids leave a coating on the clutch plates that will eventually cause them to start slipping.
I have been using regular Honda MTF tranny fluid with a few drops of Redline LSD friction modifier, the more modifier you use the less it chatters

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by garyc17 &raquo;</TD></TR><TR><TD CLASS="quote">Opsss. didn't know that the shafts are the same length.. Had an old Mitsubishi and they were of different lengths. So anyone know's why it chatters on right turns only?</TD></TR></TABLE>

Yeah, the axles are the same length. Us Honda boys use a halfshaft, on the drivers side of the tranny, to make the CV axles the same length.

 

Why don't I just use Redline 75w90 which comes with friction modifier additives? I hear it may shorten the syncro life due to GL-5 rating and also it will be slightly more notchy. Is this true?

 

What about using Redline MTL? That would be good for the syncros, but bad for the LSD. Is there any way I can come to a resonable balance of protection?