What is the viscosity at 100C of Lifeguard 8 or 9?

[JasonATaylor]

I can't find it anywhere. The closest post I could find giving an answer was this one:

https://f30.bimmerpost.com/forums/showpost.php?p=25089524&postcount=2

I tried to go to the zf website, but I wasn't able to find the data sheet for Lifeguard 8. Can anyone help me? The zf website is https://www.zf.com. The product number is ZFS-S671090312. Actually it was updated at some point, so there might be two product numbers.

 

[BlakeB]

There's a UOA on this forum. Looks to be 5.2-5.3 cst at 100°C.
https://www.ram1500diesel.com/forum...e/62142-transmission-fluid-analysis.html

 

[JasonATaylor]

Wow! That's so low!!!! I am shocked! This is after it sheared down, of course. I wonder what the data sheet says. No wonder ZF had some issues with this fluid in my Audi A6.

 

[BlakeB]

Maxlife is said to work well in place of the ZF fluid.
https://youtu.be/_qJ1iq0Eb-8

 

[The Critic]

Originally Posted by BlakeB
Maxlife is said to work well in place of the ZF fluid.
https://youtu.be/_qJ1iq0Eb-8

 

[The Critic]

Originally Posted by JasonATaylor
Wow! That's so low!!!! I am shocked! This is after it sheared down, of course. I wonder what the data sheet says. No wonder ZF had some issues with this fluid in my Audi A6.

Mazda's Type FZ has a similar viscosity. So does MB 236.15.

 

[BlakeB]

I've been reading online that people have used Mercon SP in place of Lifeguard 6 with no issues.

 

[BMWTurboDzl]

5.6

Per page 11 of the ZF MSDS for LG8

msds

Don't understand what's so shocking about it. Seems a bit of a strawman statement.

 

[nthach]

Originally Posted by BlakeB
Maxlife is said to work well in place of the ZF fluid.
https://youtu.be/_qJ1iq0Eb-8

Nope. Stick to the ZF stuff. Unlike a Toyota or Hyundai, good luck finding a reasonably priced replacement ZF.

 

[charmer37]

I use Mercon SP in my ZF 6HP19, Mercon SP is the cheap equivalent to Lifeguard 6 Atf and it works great in my ZF transmission.

 

[ledslinger]

Anyone know if Lifeguard 8 can be used in Lifeguard 6 applications? I have plenty of Lifeguard 8 but a ZF 6 speed in a 2006 BMW 530I.