Just wondering if anyone has swithced to synthetic transmission fluid. Tell me about your findings/results.

Stuff seems pretty cheap but then the labor at the shop will be a little more I guess

 

I would also like to know what the best transmission oil is for a manual, i'm goig to change mine out when i get mine worked on.

 

the factory fill is synthetic gear lube 90W

 

First, the manual transmissions in our cars use ATF, not straight weight gear oil. Second I doubt its synthetic for the 2.2 and 2.4 manual trannies. When I replaced mine it felt and looked just like good ole Dexron III. Its possible that GM gave the 2.0 SC synth trans fluid from the factory.

 

the 2.2L/2.4L Getrag use ATF Dexron 3.

The 2.0 S/C Saab trans uses gear oil

 

So I guess I don't need to change out any fluids in my transmission because of the gear lube?

 

in 2006 GM changed everything to AF6 In there auto trans which is a syn based fluid. now in that Manual it is a syn based fluid which is like a 75-90w I used the BG snycroshift which is like the autotrac that GM puts in there transfer case for there truck.

 

I have an 05 w/ an auto trans. Do I have to stick with reg Dex III, or can I switch to synthetic?

 

how many miles is on it? sometimes switching to synthetic with high miles may cause issues.