2015 Passat MT Fluid / Brake Fluid

[passatman18]

2015 1.8T US Passat 5 Speed. The car has a bit over 100k on it. I'm looking to change my brake and transmission fluid, it's never been changed. I'm planning on using TRIAX MT 75W-90 GL-4 for the transmission. Thoughts?

As far as the brake fluid goes, I'm aware of how important that choosing a good brake fluid is. I don't think it's been changed in a few years. After a bit of heavy braking, I get brake fade quickly. I also know that the brake fluid is used for the clutch actuation, and for the traction control system, via the ABS module. I have read that using improper fluid (DOT4, but not to VW spec), can cause slower ABS module reaction times. I'm thinking of using ATE Typ 200, can this improve brake and clutch feel?

 

[edyvw]

2015 1.8T US Passat 5 Speed. The car has a bit over 100k on it. I'm looking to change my brake and transmission fluid, it's never been changed. I'm planning on using TRIAX MT 75W-90 GL-4 for the transmission. Thoughts?

As far as the brake fluid goes, I'm aware of how important that choosing a good brake fluid is. I don't think it's been changed in a few years. After a bit of heavy braking, I get brake fade quickly. I also know that the brake fluid is used for the clutch actuation, and for the traction control system, via the ABS module. I have read that using improper fluid (DOT4, but not to VW spec), can cause slower ABS module reaction times. I'm thinking of using ATE Typ 200, can this improve brake and clutch feel?

No.
ATE TYP 200: YES.

 

[kschachn]

No.
ATE TYP 200: YES.

That didn’t take long, did it?

 

[The Critic]

No.
ATE TYP 200: YES.

Should be using a low-viscosity DOT4, such as ATE SL.6.

 

[edyvw]

Should be using a low-viscosity DOT4, such as ATE SL.6.

I used 200, no observable differences at very low temperatures. I usually use it on Tiguan as I buy the same fluid for BMW and VW as I avoid low viscosity on track.

 

[edyvw]

That didn’t take long, did it?

I can smell the intruder

 

[The Critic]

I used 200, no observable differences at very low temperatures. I usually use it on Tiguan as I buy the same fluid for BMW and VW as I avoid low viscosity on track.

There's no downside to the LV product aside from a small difference in boiling points. But for most applications, the more favorable viscosity profile is beneficial to faster ABS actuation at low temps.

This particular vehicle calls for VW 501.14, which is a LV fluid.

 

[edyvw]

There's no downside to the LV product aside from a small difference in boiling points. But for most applications, the more favorable viscosity profile is beneficial to faster ABS actuation at low temps.

This particular vehicle calls for VW 501.14, which is a LV fluid.

Yeah, I think all VW's call for LV since 2009. Not sure.

 

[CleanSump]

I used Bosch Bosch ESI6 DOT 5.1 Brake Fluid when I had a Jetta. It's LV. It's in my BMWs, MB, and Yamaha now.

 

[kschachn]

Yeah, I think all VW's call for LV since 2009. Not sure.

Perhaps. I have TYP 200 in my Tiguan now and so far no weirdness I can detect. It has only gotten down to 0F or so, maybe I’ll see something if it gets colder.

 

[edyvw]

Perhaps. I have TYP 200 in my Tiguan now and so far no weirdness I can detect. It has only gotten down to 0F or so, maybe I’ll see something if it gets colder.

I used in my Tiguan and BMW strictly TYP200, until a few years ago when I got some sizable quantities of Motul RBF660.

 

[tcp71]

Amsoil MTF for the transmission:
https://www.amsoil.ca/p/amsoil-75w-90-manual-transmission-transaxle-gear-lube-mtg/

Pentosin Dot 4LV for the brakes:
https://lordco.com/Product/DOT-4-LV-for-vehicles-requiring-low-viscosity-brake-fluid-1-L-PEN1224116

 

[ceecbtg]

MQ250 code LPU, NZB uses G052527 oil or if you want someting 75w-75w80 GL4. If you use 75w90 shifting may be bad specially on cold.

 

[tcp71]

MQ250 code LPU, NZB uses G052527 oil or if you want someting 75w-75w80 GL4. If you use 75w90 shifting may be bad specially on cold.

75w, 75w80 and 75w90 all have the same 75 viscosity range "on cold". It's high temperature viscosity that's different.

 

[edyvw]

75w, 75w80 and 75w90 all have the same 75 viscosity range "on cold". It's high temperature viscosity that's different.

They still differ when cold. Their KV40 is different.
For example, i switched last January to HPL 75W. It is actually bit thicker than BMW MTF3. While good when cold, hot performance was really bad. It was “too slippery,” often wanting to go from 4th to 3rd instead 5th, or 2nd to 1st. Which is really big problem when you shift close to redline.
Now I have 75W80 Motul Gear Power. While hot shifting is absolutely fantastic, cold is good, but not as good as HPL. It is not a problem, even at 3 degrees, which was outside this morning, but it is not as smooth as HPL when cold.