TractorByNet.com - View Single Post - Why HY-GARD instead of ATF type F in Deere X700 series?

Hardscrabbble · 12-25-2007, 12:04 AM

I changed my K92 Tuff Torq transmission fluid this past spring. I change it every two years regardless of hours. Having worked for a company that designed and built transmissions. I can tell you a lot of testing goes into the proper hydraulic type of fluids to be used in a transmission. Granted most companies do not make their own fluids but a lot of engineering time takes place between the lubricant mfg. and the equipment mfg. to get a lubricant that meets the specs. needed by the equipment mfg. I personally know of one ocassion where a full tanker load of oil was rejected at the build factory because it did not pass the equipment mfg. lab test specs. It probably ended up in 10,000 plastic bottles on many different store shelves. So while I am not suggesting that aftermarket products that meet factory specs. are not O.K. to use I am sure they are. I am just saying for me and from my experience I stick with the OEM hydraulic fluids. If John Deere says J20D Hy-Gard Low-Visc. then thats what I use.

12-25-2007, 12:04 AM	#10 (permalink)
Hardscrabbble New Member Join Date: Oct 2007 Posts: 13	Re: Why HY-GARD instead of ATF type F in Deere X700 series? I changed my K92 Tuff Torq transmission fluid this past spring. I change it every two years regardless of hours. Having worked for a company that designed and built transmissions. I can tell you a lot of testing goes into the proper hydraulic type of fluids to be used in a transmission. Granted most companies do not make their own fluids but a lot of engineering time takes place between the lubricant mfg. and the equipment mfg. to get a lubricant that meets the specs. needed by the equipment mfg. I personally know of one ocassion where a full tanker load of oil was rejected at the build factory because it did not pass the equipment mfg. lab test specs. It probably ended up in 10,000 plastic bottles on many different store shelves. So while I am not suggesting that aftermarket products that meet factory specs. are not O.K. to use I am sure they are. I am just saying for me and from my experience I stick with the OEM hydraulic fluids. If John Deere says J20D Hy-Gard Low-Visc. then thats what I use.