My Haynes manual says use Castrol Syntorq is that the same as syncromesh ?

 

It's not. Syntorq is the gear lube. It might be a 75/85? We use our 75/90.

 

Syntorq (Castrol brand name), equivalent to the Chrysler part# MS-9224 or GM part#s 9985648/12346190 is the ONLY recommended fluid for the NV4500.

It is a 75w/85w synchromesh GL4 synthetic gear oil.

http://stuff.is-a-geek.net/OnlineDocs/Vehicles/MTLs

 

Sounds good to me. Thanks for the feedback!

 

yours is a 6 spd it used different fluid.

 

Doesn't pennzoil make a reasonably priced Syncromesh fluid?

http://www.pennzoil.com/documents/Sy...ns%20Fluid.pdf

 

Not for the NV4500.

 

Take a peek at the PDF I posted....meets both specs you mentioned. Unless I am missing something...

 

Yes you are. It is not heavy enough. The Chrysler synchromesh spec includes both a light and heavy weight synchromesh, so not all inclusive as far as the NV4500 is concerned - just part of the spec for synchromesh purposes. Syntorq "LT" is the heavier grade.

Did you read the link to MTL explanations I posted?

 

Just did. Good stuff, thanks man.