Transmission Fluid Change

[CKniht90]

Alright finally getting around to chaning the trans fluid. I got some Castrol Manual Gear fluid. This is a good brand? This is the fluid that came up on the computer when I asked the guys at Advanced Auto Parts what kind I needed. Also a friend said I might need additives for it too? Do I need anything to add to the trans fluid? Or just strait Trans fluid?

[KEV951]

does your car have a factory lsd?? (limited slip differential) meaning power is distributed to both rear wheels and not just one side. if so use swepco or redline, if not your fine with what you have.

[CKniht90]

Well I'm not sure. I have a 944 1988 4cyl 2.5L 5speed N/A Celebration Edition. How do i find out what it is?

[ernie9944]

[QUOTE=CKniht90;5588055]Alright finally getting around to chaning the trans fluid.

Don't forget to remove the top plug first & use the rigth wrench ,if you could get one of these it will make life less miserable for you.

[KEV951]

jack the car up from the back just enough to get the rear wheels off the ground, turn one wheel in one direction, if the oposite wheel spins in sink with the spinning wheel ( same direction forward or backward) you havd lsd. if the other wheels turns the other way than the way your turning, you have a non lsd or open differential.

[pigeon]

Call Porsche America and ask them for the option list. They will want you to fax proof of ownership (I sent my registration) and will call you back with a list of the options on your car. That's how I found out my 951 has an LSD among other things.

I used Redline recently and it helped with a slight grind into 3rd. I'll probably grab some Swepco and change it again soon - the local PCA chapter has a discount with a supplier. I'll probably also get some BradPenn oil for the next change too.

[oliver88]

Redline MT 90. GL-4 rated lubes are specified for 944 trans.

[Grandad#3]

X100 on using Swepco 201 75W90 Trans Gear lube and Brad Penn 20W50 engine oil.
Check out the link below and it will tell the location of the sticker for all your codes and what your Option Codes mean.

944online.com - Porsche 944 Option Codes.

http://www.944online.com/cgi-bin/forum/forum.cgi?board=944Talk;action=display;num=1273219 879;start=0#5

Cheers,
Larry

[pigeon]

Oops, forgot about the option code sticker, probably because some DPO painted over or removed it on my car...

[James Chimney]

hope it is ok to post this here, here is Clarks garage's trani fluid change Manual Transaxle Fluid Change I used a very small oil can with a pump (took for ever and it takes 3 bottles) Yes remove the top bolt first (do not drain it until you know you can refill it some say hit the bolt to "wake it up" I hit every thing on this car with WD-40 before starting to loosen up the "old stuck nuts and bolts) I believe it is a 17mm hex key head

[John_AZ]

Yes to the 2 synthetic oils mentioned above.

I use Valvoline HD gear oil. It is for our hypoid gears and will not ruin/eat the yellow metal syncros. Cheap.



John

[VINMAN]

+1 to the Valvoline. The Castrol will work just fine also.

[CKniht90]

Alright guys. Greatly appreciated. Pelican parts forums never fails me

[mayPOR944]

i tried swepco and others im sticking to valvoline good affordable stuff

[matty89]

whats the difference between the gl-3 and 4 its good for yellow synchros and the other not ?

[RedBaron]

Originally Posted by matty89

whats the difference between the gl-3 and 4 its good for yellow synchros and the other not ?

Gl4 is what Porsche recommends. I used Redline MT90 and it's perfect for my S2 LSD Transaxle. I don't know the difference between gl3/gl4, but I know the difference from Gl4 to GL5 is that GL5 contains a high sulfur content.

[choinga]

my tranny is a little whiney at low RPM's when engaged because my PO put in a fidanza flywheel when he did the clutch...so I put in Swepco 210 (yes, 210 not 201) and love it. It's not silent, but it really quieted it down nicely (and I had tried Royal Purple, Lucas and 201 previously).

I'm sticking with 210 - a little harder to find, but worth it IMHO. I have a LSD.

[Slam]

Lucas: Lord of Darkness, and I don't just mean Britcar electrics...