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Old 07-14-2010, 09:46 AM   #1
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as for my first post. has any or heard or have any data on using automotive gear lube in the diffs?

ive got a ton of royal purple diff 80-90 wt sitting in my garage

im running a d8t
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Old 07-14-2010, 09:48 AM   #2
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$ for $ Run the stuff we know works.
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Old 07-14-2010, 04:33 PM   #3
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I think the cen uses gear oil in the rear diff but other than that I have never heard of any one using it. Diff fluid is cheap and a bottle goes a long way.
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Old 07-14-2010, 04:41 PM   #4
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Originally Posted by jammin32j View Post
I think the cen uses gear oil in the rear diff but other than that I have never heard of any one using it. Diff fluid is cheap and a bottle goes a long way.
Agreed, but the Idea is a nice one.. A quart of 75w90 could last you for years.. Oh Wait if you don't change tracks often then a bottle of diff fluid can last that long too..
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Old 07-17-2010, 12:24 PM   #5
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i think im going to start doing some testing with viscosity...lucas oil stabalizer is super close to 20k
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Old 07-17-2010, 12:52 PM   #6
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I was rebuilding my smart diffs every race, with the losi recommended grease, started using Synthetic gear lube 75w90 on my Losi 2.0 smart diffs and they become more consistent, ran cooler and would last for 4 to 5 races, down size is that stuff stinks and your hands will too for a few days. I am now using it on the Fioroni tractive diff for the MP9 and just as happy.
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Old 07-17-2010, 01:04 PM   #7
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i think im going to start doing some testing with viscosity...
Remember, using silicone oil is due to it not changing viscosity in a meaningful way due to temperature changes. So you get consistent performance all day. So a oil that is temperature stable, and of the same viscosity, should be golden.
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Old 07-17-2010, 01:21 PM   #8
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Remember, using silicone oil is due to it not changing viscosity in a meaningful way due to temperature changes. So you get consistent performance all day. So a oil that is temperature stable, and of the same viscosity, should be golden.
B!
i totally agree. i would only test straight weight oils. probably going with syth oils.
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Old 07-17-2010, 01:44 PM   #9
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I have been very happy with this stuff. Works perfect in the diffs.

http://airsoft-club.com/shop/interna...ease-lubricant
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Old 07-17-2010, 02:15 PM   #10
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Grease only works when your looking to reproduce the response of a very thin oil. It's not going to cut it when you want something thicker, and want a diff that actually locks up, and forces the same rotation speeds on the outgoing shafts. For my "base" setup, it could work in the rear, only. I run 7/10/1K Front/Center/Rear on my buggy.
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