Extreme Pure Flow Tractor Hydraulic Transmission Fluid

Picked up 5 gallons of Extreme Pure Flow Tractor Hydraulic Transmission Fluid from Tractor Supply. It states it's compatible with all tractor transmission / hydraulic fluids. It does reference Ford and New Holland tractors. For them it lists as ESN-M2C 134B,C. I need to change the transmission / hydraulic fluid in my 2N as I don't think it has ever been changes and I've had the tractor myself for about 27 years. Can I use this fluid? Might add I live in Mid-Michigan about 45 miles north of Saginaw. This is just an old work tractor. Not used much, also has low compression on cylinder #4 with blow by as my oil breahter does smoke a bit.
Thanks,
Bill

It's my understanding that 134c is for warmer climates. 134d is for colder weather. I am tying that oil now. My hyd.pump likes it. My trans. likes 90 weight better. The UTF is 60 weight I think. I could be wrong.

(quoted from post at 08:30:01 08/17/13) It's my understanding that 134c is for warmer climates. 134d is for colder weather. I am tying that oil now. My hyd.pump likes it. My trans. likes 90 weight better. The UTF is 60 weight I think. I could be wrong.

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Forget "weight" because the numbers are SAE engine or transmission viscosity [b:3e69a172e8]GRADE[/b:3e69a172e8] numbers and not applicable to these types of oil. The Xtreme products are manufactured by Cross oil and come in a number of different viscosities and qualities. Here are the actual viscoity data for three of their products as well as Ford M2C-134D:


Xtreme SAE 90 GL1 gear oil: viscosity = 13.5 cSt@100C, VI = 90
Xtreme PureFlo Tractor Transmssion fluid: viscosity = 7.3cSt@100C, VI= 54
Xtreme Premium Tractor Transmission fluid: viscosity = 9.3cSt@100C, VI = 140
Ford M2C134D: viscosity = 9.4 cSt@100C, VI = 134

Oils with a higher VI (viscosity index) thicken less when they get cold and thin out less when they get hot. High VI oils are excellent all weather performers. Low VI oils are only suitable for use in a narrow range of temperatures and are not all season oils. Based on that alone it should be obvious that the PureFlo oil is a relatively thin oil when hot and like molasses when cold. It is an economy fluid made from low grade base stocks and ill suited for use below 32F (or even temperatures a bit warmer). It is also a good bit lower viscosity when hot making it a lighter duty gear oil for use only during mildly warm weather. The Premium fluid is a LOT better and nearly identical to M2C-134D.

FWIW if you wanted to put a viscosity grade number on the Premium or Ford M2C-134D oils they would be on the high end of SAE 80 gear oil (SAE 85 starts at 11.0) or in the middle of SAE 30 engine oil (9.3 to 12.4). Both have a much higher VI than conventional gear oil and will work a LOT better than a mono-grade SAE 80 gear oil when the temperatures are near or below freezing.

TOH

I'd use it before a straight 90...

(quoted from post at 20:29:41 08/17/13) I'd use it before a straight 90...

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I'd pop for the extra $15 that a 5g pail of the Premium UTF costs before I'd use either. From the Cross PureFlo product data sheet:

[i:932918f886]Xtreme® Pure Flo Tractor Hydraulic is a straight SAE 20 weight product and is
designed for use in warmer climates, where low temperature operation is not an
issue. Use Xtreme® Heavy-Duty Universal Tractor Hydraulic fluid for all-season or
cold weather use. [/i:932918f886]

Even their SAE 90 EP is acceptable if the temps stay moderate to hot.

TOH

in 96 degree fl.. not much to worry about cold weather..

in an N.. i pretty much wouldn't care. in anything better than an N.. yeah.. a oil that actually met some better specs. especially if it had wet brakes..

Been using Extreme Pure Flow in both tractors (2N and IH 340) for years. The local Farm Store has it on sale for $25 (5 gal) from time to time.

Thanks for the info, I'll try the premium.