Ok I know this point has been discussed before. But I need a good single thread consensus.

 

I am getting ready to change mine and I am trying to decide what to run. I was told by redline to use 75W90NS, not MT-90. I have heard great thinks about Catrol something, but we cannot get this in the united states correct?

 

Does anyone have any insight for me??

 

Thanks

Castrol TAF-X, Setright swears by it. I think someone found it here in the states under a different name. A search for the thread "Redline MT 90?" should fill you in.

Woops, i was wrong, thats not the right thread, buts its here somewhere. Hopefully someone else will chime in.

Okay, okay! So, I really like Castrol TAF-X :-)

 

 

Statside, it's called "Syntorq".

 

 

Just to refresh, I have tried RedlineNS, and it's not the worst for actual quality, but it breaks down way too fast. Castrol TAF/Syntorq has improved with age.

Again, I've had best experiences with the cheapest, junkiest gear oil I can get. The cheaper, the better...

Okay, okay! So, I really like Castrol TAF-X :-)

 

 

Statside, it's called "Syntorq".

 

 

Just to refresh, I have tried RedlineNS, and it's not the worst for actual quality, but it breaks down way too fast. Castrol TAF/Syntorq has improved with age.

Ok got this info Syntorq LT SAE 75W-85, API GL -4 is a premium high performance, synthetic gear lubricant for synchronized manual transmissions. Syntorq LT is available through General Motors (Part #12346190) and Chrysler (Part #4637579) dealerships. Please contact your local dealership."

So Syntorq is still not the correct spec for a AWD Subaru Transmission. Subaru calls for GL-5. I was told that running GL-4 in your AWD Subaru tranny will hurt the front differential. If I was going to run GL-4 I would get Redline MT-90 which is same specs as the Syntorq and readily available, and works great in all manual transmissions that I have run it in.

Back to square one!

The specs on TAF-X say GL4 / 5

The specs on TAF-X say GL4 / 5

Damm the specs on Syntorq here in the states is GL4 only.

Ok got this info Syntorq LT SAE 75W-85, API GL -4 is a premium high performance, synthetic gear lubricant for synchronized manual transmissions. Syntorq LT is available through General Motors (Part #12346190) and Chrysler (Part #4637579) dealerships. Please contact your local dealership."

 

BTW I just called the local chevy dealership, $29.93 per quart!

Setright, check your PM's please

Hey folks,

How do you know what's good? Published specs? Sound of tranny?

I try to stick with a brand name when buying lubricants but I have no clue how to gauge how something like this performs.

Do you have an oil analysis done?

Mainly based on feel. SOund too. TAF-X allows quickish shifts without KERR-unch!

Mainly based on feel. SOund too. TAF-X allows quickish shifts without KERR-unch!

Well after much research I found out that TAF-X, (Syntorq here in the states) is GL-4. So after reading so much good about it from Setright I was going to run it but I could not stomach the $130.00 it would cost. ($30 per quart plus tax)

So I have had very good luck on other vehicles with Redline MT-90 which is a GL4 tranny fluid. I put some in on Saturday and have driven well over 200 miles since then and it is awesome!! Plus it is only $7 per quart!!!

Finally crunch less up and downshifts in my wagon!!!

As you wish captain, as you wish. :-)

 

 

It set me back about $100, including tax. Redline would cost the same, since it's a rare product over here.