# Synchromesh

**URL:** <https://forums.speedlife.net/t/synchromesh/122512>\
**Category:** SON240sx Automotive\
**Created:** [March 11, 2009, 8:11pm UTC](https://forums.speedlife.net/t/synchromesh/122512 "2009-03-11T20:11:10Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![DoneDreamin](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/donedreamin/32/5678_2.png) [@DoneDreamin](https://forums.speedlife.net/u/DoneDreamin)\
**Post date:** [March 11, 2009, 8:11pm UTC](https://forums.speedlife.net/t/synchromesh/122512/1 "2009-03-11T20:11:10Z")

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Hey guys,

Would anyone recommend this for an SR tranny?  
I know i know, MT-90 but seems mostly preference

Looking more for facts , simply because i already have this stuff laying around the house.

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**Author:** ![DoneDreamin](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/donedreamin/32/5678_2.png) [@DoneDreamin](https://forums.speedlife.net/u/DoneDreamin)\
**Post date:** [March 11, 2009, 8:51pm UTC](https://forums.speedlife.net/t/synchromesh/122512/2 "2009-03-11T20:51:42Z")

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Anyone chime in, need quick answer as she’s sitting on jacks.

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**Author:** ![RED\_LINE](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/red_line/32/5656_2.png) [@RED\_LINE](https://forums.speedlife.net/u/RED_LINE)\
**Post date:** [March 11, 2009, 9:33pm UTC](https://forums.speedlife.net/t/synchromesh/122512/3 "2009-03-11T21:33:52Z")

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GET 'ER DONE!

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**Author:** ![NeveR](https://avatars.discourse-cdn.com/v4/letter/n/e95f7d/32.png) [@NeveR](https://forums.speedlife.net/u/NeveR)\
**Post date:** [March 11, 2009, 9:59pm UTC](https://forums.speedlife.net/t/synchromesh/122512/4 "2009-03-11T21:59:27Z")

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syncromesh is super viscous, i believe close to atf.

Which means it’s great for cold weather but once it warms up (weather + driving), it will break down faster/provide less protection.

IIRC SR tranny’s should take either a GL4 gear oil (Penzoil 75-90 gl4), or a specialty (like redline, royal purple syncromax, etc.).

The specialty tranny fluid would be optimal.

If your syncros are fucked, try the mesh or even just a synthetic atf (like mobil 1) and see if it helps, but be weary that high heat will thin that shit out.

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**Author:** ![R33](https://avatars.discourse-cdn.com/v4/letter/r/5f8ce5/32.png) [@R33](https://forums.speedlife.net/u/R33)\
**Post date:** [March 12, 2009, 5:33am UTC](https://forums.speedlife.net/t/synchromesh/122512/5 "2009-03-12T05:33:12Z")

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im currently running mt90 and i diont like it … im going back to Amsoil or might try royal purple