View Full Version : tranny fluid for a wrx.. synthetic good or bad?
fastjim
10-06-2006, 10:12 PM
ok so im changing my fluids and i did some research on it and everyone on nasioc likes uncle scottys ****tail.. i was thinking of doing that then i looked up amsoil since im ordering some oil i looked at their gear fluid.. now if their oil is so good wouldnt their trans fluid be good too.. but only problem is its all synthetic. i heard not to use synthetic in the suby trans cuz it wont run right and will mess it up.. is this true or can i use synthetic im my trans.. i need to know before i order this soon.. thanks guys.. i will be using the severe gear 75w90 fluid..
xEJ20x
10-06-2006, 10:12 PM
Synthetic gear oil is goooooood.
Chip18
10-07-2006, 03:12 AM
I'm not sure if you have ever heard of this, but it is called GM Syncromesh. You can go to any GM dealer and pick this up. It is a little expensive, about $10 a bottle, but is well worth the investment. I put two bottles of this and two bottles of 80w-90 synthetic gear oil in my transmission after my clutch/flywheel install. Gear shifts are much smoother and putting the car in first gear isn't as tight as it once was.
Here check this link out http://www.i-club.com/forums/showthread.php?t=57291&highlight=syncromesh
Ender81
10-07-2006, 03:24 AM
When I had my clutch installed I had my fluids changed out. Super Blue for the tranny and Royal Purple for the diffs. and I couldn't be happier.
ej20wrx123
10-07-2006, 08:33 AM
USE redline lightweight shock proof!!! You will LOVE it!
FYI: I'am pretty sure andrew at geartech uses this stuff in his rebuilds
wrxman60
10-07-2006, 09:42 AM
i agree, redline in incredible. my 4th gear synchro grinded, i changed the tranny fluid to redline and it worked perfectly, the only thing since it is soo thick it takes a little bit longer to warm up, other than that it is great
ej20wrx123
10-07-2006, 11:23 AM
the lightweight isnt as thick....i rocked it for a whole winter and was better then the stock fluid in the cold.
Ender81
10-07-2006, 11:26 PM
Yeah the blue stuff got rid of my fourth gear grind too, it's a wonderful thing to be able to shift into fourth and not cringe lol.
MuddyREX
10-10-2006, 12:35 AM
I'm using Mobil1, and with my WRX at 105,000 miles the trans still feels great.
blinger
11-07-2006, 11:04 AM
no dont ever put synthetic fluid in your tranny, I had issues with that, my 3rd to 4th gear grinds on high rpm. UNCLE SCOTTY MIX FTW!!!
xEJ20x
11-07-2006, 11:29 AM
no dont ever put synthetic fluid in your tranny, I had issues with that, my 3rd to 4th gear grinds on high rpm. UNCLE SCOTTY MIX FTW!!!
w3rd.
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