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Re: HydroGear factory fill EZT-2200 UOA [Re: SOHCman] #4865820
09/11/18 05:40 AM
09/11/18 05:40 AM
Joined: Jul 2014
Posts: 443
PA
Patrick0525 Offline OP
Patrick0525  Offline OP

Joined: Jul 2014
Posts: 443
PA
Originally Posted by SOHCman
The word on the street is hydro units love ZDDP, zinc in particular. Exmark used to only recommend M1 15w-50, but ever since Mobil lowered the zddp levels in it they had to start offering their own Exmark branded fluid. No idea who actually makes it but its alleged to be loaded with zinc.


Amsoil Hydrostatic Transmission zddp levels. https://bobistheoilguy.com/forums/ubbthreads.php/topics/4865819#Post4865819


'14 Toyota Venza 3.5L 88K mi
TGMO 0W-20
PP 0W-20/Fram Ultra filter(spring/summer)


Re: HydroGear factory fill EZT-2200 UOA [Re: Patrick0525] #4878178
09/24/18 09:27 PM
09/24/18 09:27 PM
Joined: Jun 2002
Posts: 20,129
Iowegia - USA
MolaKule Offline
Global Moderator
MolaKule  Offline
Global Moderator

Joined: Jun 2002
Posts: 20,129
Iowegia - USA
Was this the factory fill?

If there are no babbit bearings, and it appears they are using only roller bearings, the lead must have come from a chemistry component added at the factory, most likely Lead(2+) di(2-naphthoate).

Since there appears only to be spur gears involved, ZDDP levels of 700 ppm are sufficient. No need for EP additives.

The analyzed oil appears to about an 80W90.

Last edited by MolaKule; 09/24/18 09:38 PM.

Infinity is a rather long time - especially towards the end. smile
Re: HydroGear factory fill EZT-2200 UOA [Re: MolaKule] #4878205
09/24/18 09:56 PM
09/24/18 09:56 PM
Joined: Jul 2014
Posts: 443
PA
Patrick0525 Offline OP
Patrick0525  Offline OP

Joined: Jul 2014
Posts: 443
PA
Originally Posted by MolaKule
Was this the factory fill?

If there are no babbit bearings, and it appears they are using only roller bearings, the lead must have come from a chemistry component added at the factory, most likely Lead(2+) di(2-naphthoate).

Since there appears only to be spur gears involved, ZDDP levels of 700 ppm are sufficient. No need for EP additives.

The analyzed oil appears to about an 80W90.



Yes, this is a factory fill on my Club Cadet ZTR.


'14 Toyota Venza 3.5L 88K mi
TGMO 0W-20
PP 0W-20/Fram Ultra filter(spring/summer)


Re: HydroGear factory fill EZT-2200 UOA [Re: Patrick0525] #4963925
12/28/18 10:57 PM
12/28/18 10:57 PM
Joined: Apr 2010
Posts: 57
ms
racinjason Offline
racinjason  Offline

Joined: Apr 2010
Posts: 57
ms
Originally Posted by Patrick0525
Originally Posted by MolaKule
Was this the factory fill?

If there are no babbit bearings, and it appears they are using only roller bearings, the lead must have come from a chemistry component added at the factory, most likely Lead(2+) di(2-naphthoate).

Since there appears only to be spur gears involved, ZDDP levels of 700 ppm are sufficient. No need for EP additives.

The analyzed oil appears to about an 80W90.



Yes, this is a factory fill on my Club Cadet ZTR.




Just did a set of ezt’s on a 5 of 2012 rzt50. What came out looked like gear oil to me. The noisy side had a foul odor.

I put couple capfuls of Lucas assembly lube in each, filled with Napa 15w-50 and it’s pretty quiet now.

I pulled them, flipped them, refilled. Vents were clear, no water I could see.

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