kevlar911 said:Just wondering what fluid Ford uses in the Tremec 3650 manual tranny on the '05 and if you would benefit at all from dumping it and putting in GM Synchromesh, which is the preferred fluid for Tremec transmissions. I put Synchromesh in my '95 with the T-5 tranny and noticed smoother shifts right away.
fr96ss said:tryed the dextron III in my 03 3650 made no difference tryed a mix or redline d4atf and dextron III made shift feel less consistant now i am going to try the new ge synchromesh friction modifyed ill ley you know how that works out.
mach1dsg said:"GM Synchromesh fluid it is not recommended
for use in the 3650 model because the High Sulfer content
is harmful to the Carbon Fiber/Paper Synchro Blocker"
you should put Synchromesh fluid in a T5/TKO, don't use it with a 3650... Tremec recommend against it, stick with any ATF Dexron III of your choice.
Mustang5L5 said:The t-5 has the same Carbon FIber/Paper synchro blocker rings for 1-4 gear. So that's a No-no to synchromesh in the T-5 as well even though i know tons of guys who will say otherwise.
The only Tremec trans that requires synchromesh is the 3550/TKO versions. Everything else is ATF/D3
fr96ss said:Great post.. Points well taken however i tried them all and when cold they do nothing for shifting performance in my 03.. it doesnt grind at all just very poor shift feel. i shift first 2 third when cold i double clutch when cold i cant stand it im putting the new gm syncromesh friction modifyed in it this winter and giving it a shot. supposidly it is produced by texaco and they claim that the sulfer content is extreamly low and non corosive to carbon fiber/paper syncros however i cannot get them to put it in writing.
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