Planning on draining the tranny fluid and putting in some of that Penzoil Synchromesh (sp?) gear oil. I have a few questions however....

1. Is it the right oil/safe to use? (I assume Yes)

2. Are there different grades like motor oil or just one?

3. Does anyone have any experience having tried this oil, whether it feels smoother etc.

4. Other input?

 

search search search.....this has been covered 12,123,238,345,728,345,792,874 times... jk

its good stuff. there are many threads about it

 

i used it, i had some mild grinds but i think there are other issues.. didnt cure the grinds.. i cant say i noticed a difference but i might have a bent shift linkage.. but i have a friend who said his ran a little smoother in his b16 cable tranny crx

 

It eliminated all my 5th gear grinds

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by silver97prelude &raquo;</TD></TR><TR><TD CLASS="quote">It eliminated all my 5th gear grinds</TD></TR></TABLE>
+occasional 3rd grinds too. Great stuff. Used it for about 30k miles thus far. Still great!

 

awsome guys i think i'll give it a try. I went to a store today and saw a whole bunch but no synchromesh. Saw some other stuff tho Lucas oil and a cpl others that look good. Now are they all the same or do i have to get a certain viscosity or grade or something?

 

Come on guys last question. Are there different grades or is it all the same? I noticed some bottled has grades on them 90w or something like that, and some didn't. Doesn't it matter?

 

Isn't Lucas an oil stabilizer?

 

The only synchromesh fluid i use in any of my transmission is the GM Friction Modified formula. GM part number 12377916 i don't carry that part number in my wallet for nothing.

 

Yeah,

AND YOU SHOULD NEVER USE IT!!!

The stuff screws up the formulation of the fluids you add it too and frequently causes the formation of air bubbles.

Air in ANY lubricant causes loss of lubrication... (air prevents the lube from adhering to the surface of the parts as well)

There is a good test on http://www.bobistheoilguy.com showing the problems with air and lucas oils...

Here is the article on lucas:

http://www.bobistheoilguy.com/...s.htm

 

I would use AMSOIL they are much better

 

I don't think AMSOIL operates better in the Honda transmissions than GM Syncromesh.

The GM Syncromesh makes a huge difference.

I've not been impressed with RedLine, except for cold shiftabilitiy.

However, even though the GM stuff is not synthetic, it shifts FAR better than the Honda MTL when cold and as well as the RedLine stuff.

The AMSOIL MTL is supposed to be quite good... but most people have the best results in the Prelude trannies with GM Syncromesh.

 

where can you get it besides GM? I went to Pepboys and there aint any.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 95PRELUDEVTEC206 &raquo;</TD></TR><TR><TD CLASS="quote">where can you get it besides GM? I went to Pepboys and there aint any.</TD></TR></TABLE>as far as I know the friction modifed is a GM only product. Most companies (penzoils etc...) only make synchromesh. There IS a difference between the two differnt types.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by KCHybrid &raquo;</TD></TR><TR><TD CLASS="quote">as far as I know the friction modifed is a GM only product. Most companies (penzoils etc...) only make synchromesh. There IS a difference between the two differnt types.</TD></TR></TABLE>

whats the difference? i need something to cure my slight 5th and reverse grind

 

As I have said in previous posts,

SYNCHROMESH FRICTION MODIFIED cured my slight 3rd and slight 5th gear grind, along with making shifts smooth as butter, and reduced any vibration or harshness in my drivetrain....... something I didnt even know I had.

BTW my car is a 95 SI, 105,000 miles, 5-speed of corse..

MAKE SURE you get the friction modified stuff, the regular synchromesh is good, but it is just like any high quality non-synthetic oil.

This stuff should be used in all honda 5-speed tranny's as part of preventative maintence and to relieve the transmission of slight problems. This is great stuff. Gm had an outside company develop this semi-synthetic fluid to prevent and cure the problems they were having with their 90's models manual transmissions. Sounds like a cover-up for a shitty design.

Note that this is not a permanant fix for bad synchro's by any mean, but it will pro-long the life of a bad tranny for another 6-12 months under normal circumstances.

-also let me add, there is no aftermarket FRICTION MODIFIED synchromesh available, it is GM dealer only. The pennzoil and other brands of "synchromesh" are tranny fluids that meet GM's specs for their transmissions.

GM's round bottle = regular synchromesh

GM's rectangular bottle = friction modified

Gm's cars =
GM's fluids =