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John Deere Tractors Discussion Forum
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425 transaxle fluid

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avallk

05-04-2007 10:01:21




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Can anyone tell me what is used in the transaxle? I just purchased a used 425 and see that the fluid is low. Of course the Deere dealer says I need to use their fluid. Is it regular oil? ie 5w-30
I understand that this is used for the hydraulics as well. I have a bucket, blade and mower deck.

Thanks
Ken




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avallk

05-11-2007 09:46:08




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 Re: 425 transaxle fluid in reply to avallk, 05-04-2007 10:01:21  
Thanks for the info. I have done what you suggested and went to the deere dealer. My tractor and I thank you.



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G/MAN

05-04-2007 13:37:28




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 Re: 425 transaxle fluid in reply to avallk, 05-04-2007 10:01:21  
The recommended oil for the hydrostat/hydraulic system is John Deere Low-Viscosity Hy-Gard, which is a slightly thinner version of standard Hy-Gard that Deere likes to use in most of the hydrostatically-driven products. You do not want to use engine oil of any kind etc., as hydraulic/hydrostatic systems require certain additives and protection packages that engine oils don't have. Deere recommends using their oil because they know what's best for their products. Your dealer should hav Low-Vis on hand or can easily get it for you. Regular Hy-Gard is also acceptable, but it's minimum temperature spec is much higher than that of Low-Vis. Spend the extra couple bucks and get the right oil. And I'd also highly recommend that you get yourself an operator's manual while you're at it.

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rednekelmo

05-04-2007 10:48:57




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 Re: 425 transaxle fluid in reply to avallk, 05-04-2007 10:01:21  
for no more than you will ever use just stick with the JD hy-guard. HY-guard has issues mixing with some hydraulic oils so why take achance. Expecialy avoid using the Case IH hy-tran It is not compatable with JD hy-guard and you will get the pleasure of rebuilding your transmission,also as you should change the oil and filter in your transmission regulary (I think the manual calls for every 200 or 250 hours)or sooner if it looks milky. it's cheep insurance

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