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NP435 Lubricant

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Old Mar 11, 2004 | 07:04 AM
  #1  
GEAH's Avatar
GEAH
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From: St. Louis, MO
Question NP435 Lubricant

What type of fluid is the best for a np435?
 
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Old Mar 11, 2004 | 09:43 AM
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thelonerangerxlt
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I use 75W-90 gear oil, GL-5 rated. You can use synthetic if you choose.

Don't make the mistake of using 85W-140 in it, especially if you're in a colder climate. I once did, and it would hardly shift on cold mornings. I had to drain it out and replace with the lighter weight oil.
 
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Old Mar 11, 2004 | 10:13 AM
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oldhalftons
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From: Spokane WA
using 80W-90 in both the np435 and Clark
 
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Old Mar 11, 2004 | 02:59 PM
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77'F-150Mudder
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From: Boise, ID
Originally posted by thelonerangerxlt
Don't make the mistake of using 85W-140 in it, especially if you're in a colder climate.
So true.. My 435 has a tough time shifting in cold weather even with 80W-90 untill it gets warmed up. I think my syncros are in marginal shape though.

80W-90 all the way!
 
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