Also does anyone know what kind of transmission fluid the 2.3t T-5 transmission use? i have heard that they are like world classes and use automatic transmission fluid?
There is a WIDELY PROPIGATED Internet myth that the non-WC uses gear oil and the WC T5s are the only ones that used ATF.
Borg Warner left the final decision on fluid of choice up to the auto manufacturer. As a result, ALL Ford and ALL GM T5s came from the factory with ATF.
AMC/Jeep also used early non-WC T5s but chose gear oil...
The official Ford service guides from 1983/84 specify Dexron-II for the T5, but it is no longer made. As I understand it, Ford has superseded this with their current ATF which is Mercon-V.
Plain old DEX/MERC at the corner auto parts store is very close to the original Dexron-II and works very well.
There are others here that will swear by Royal Purple and Synchromesh synthetic, etc. Synthetic is great as long as the viscosity is similar to the original ATF and not gear oil...
Some synthetic viscocities are just too slick for the synchronizers to work properly in my opinion.
I personally like to use Amsoil ATF in my T5s if synthetic is desired. It is an excellent match to the original ATF properties.