penzoil synchromesh, no viscosity rating? Options

[enderswift]

hey everyone,

I found a box of synchromesh at work and remebered all the good things you guys said about the stuff. Thing is, none of the bottles have a viscosity number on them and im pretty sure the gt takes 75-90. Do these even come in different weights? or are all synchromesh's the same? If thats the case then how did you guys know using it would be safe.

I'm just trying to smooth out my shifts, especially from second to first.

please let me know!

[hurley97]

I've never used anything else. When we did my 5spd swap I was told it was good stuff so I bought it and have used it ever since. It's been 67k miles since the tranny swap, I changed it out once 35k miles later with the engine swap and its been in there now for 32k miles. Probably should change it out again but I haven't had any problems at all. We have it in the Beams tranny and Dustin has it in his E153. We've had no problem with any of them.

So as far as it being ok for imports or the right weight, I'd say its perfectly fine. As far as it taking care of any grinding issues, I haven't had any personal experience with that so I wouldn't know. But if you got the box for free just try it.