I have hears some of you say that you put in GM syncromesh when your transmission starts to shift rough and it clears it up for the most part. (or the penzoil stuff which is the same)

Now, I am wodering if anyone knows the weight of this oil? It seems to me that it is simply gear oil and therefor would be somewhere around 75W-90 (or 20W-50 on the motor oil scale)

Since Honda reccomends either 10W30 or 40 motoroil (or Honda MTF) I am wondering if something as heavy as gear oil is OK to use. It seems that Honda simply reccomends the lighter weight for gas mileage purposes.

Now, IF it is ok to use a gear oil, what about the other brands? I am wondering in particular about Mobil One synthetic 75W-90 gear oil. Does any one use this or any other gear oil, and what do you use?

Thanks!
SOHC

 

syncromesh is thinner then honda mtf. I just switched back to honda mtf and i think it shifts better now. So i say go with honda mtf.

 

stick with the honda stuff

 

"stick with the honda stuff" thats what I usually say also, BUT what about something like 10W-30 Mobil one synthetic? It really only calls for a 10w-30 or 40 sg or above motor oil...
thanks for the replies...
SOHC

 

I use the mobil-1 super synth 10w-30 and it works wonders, youll love it...lil pricy but worth it i say

 

I used GM Synchromesh on my 93 Prelude VTEC and it made the shifting feel a LOT smoother and got rid of any grinds. Do a search on synchromesh and you'll find a bunch of threads with feedback from other members.

 

dont use the regular synchromesh, try using the "friction modified" version of synchromesh.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Razor &raquo;</TD></TR><TR><TD CLASS="quote">dont use the regular synchromesh, try using the "friction modified" version of synchromesh.</TD></TR></TABLE>

I agree. Friction Modified actually increases heat inside the transmission by increasing friction.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JakeIsCool &raquo;</TD></TR><TR><TD CLASS="quote">I agree. Friction Modified actually increases heat inside the transmission by increasing friction.</TD></TR></TABLE>


are you sure?

 

Personally I use Amsoil gear lube 40 and ATF amsoil.

use it in a 50/50 mix. That way get the lube and the durability at the same time. No shifting issues here at all. Nice and smooooooooth.

But then again I am an amsoil dealer so I get it at cost

have fun with the mix MTF from Honda

 

Just got rid of friction modified. I got mtf now. I swear mtf shifts better. Syncromesh is so thin its eventually gonna put wear on your tranny. Its just a temporay fix for grinds. It will eventually over time cause harm. Well based on what i went through thats my opinion. When i first used it it felt awesome but then it started to seem like it was putting extra stress on my syncros. Like it was so thin it wasnt lubricating everyting enough. I started to get minor grinds. Went back to mtf and its never shifted this smooth.

 

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

I agree. Friction Modified actually increases heat inside the transmission by increasing friction.</TD></TR></TABLE>

I'm not quite sure about that. I've been using the regular synchromesh and I've had no problems thus far.

 

ive used the GM sm----both fm and reg. it does feel thinner. gonna go back to OEM mtf.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by b18crx &raquo;</TD></TR><TR><TD CLASS="quote">ive used the GM sm----both fm and reg. it does feel thinner. gonna go back to OEM mtf. </TD></TR></TABLE>
Yea i used both too, and went back with better results.

 

Yes you used REGULAR syncromesh. Friction Modified increases thermal energy to fix your grinds.

 

I have bottles of regular GM Synchromesh for sale if anyone is interested:
https://honda-tech.com/zerothread?id=1045152