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Old 17-11-2008, 10:05 PM   #1
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Default Diff Oil Recommendations (3.45 LSD)
Guys

while the ute is up in the air this weekend I am thinking about having a go at changing the diff oil, I have got some Royal Purple 75W90 gear oil on the shelf at work would it be ok to use? If not, suggestions on what is?

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Old 17-11-2008, 10:32 PM   #2
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Penrite 85w/140 LSD oil and penrite additive to stop the cone chatter.

Wait though, is yours an LSD?
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Old 17-11-2008, 10:36 PM   #3
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I used the Penrite "SIN" product in my diff, no additives though... Haven't had any cone chatter yet (though only been driven about 15km)
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Old 17-11-2008, 10:51 PM   #4
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Quote:
Originally Posted by Peuty
Penrite 85w/140 LSD oil and penrite additive to stop the cone chatter.

Wait though, is yours an LSD?
His is LSD but not IRS, therefore the stuff we use to fix ours doesn't apply to his.

Austin I'd just check what Ford recommend and then use something decent in that weight/spec.
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Old 17-11-2008, 11:01 PM   #5
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Quote:
Originally Posted by Russell
His is LSD but not IRS, therefore the stuff we use to fix ours doesn't apply to his.

Austin I'd just check what Ford recommend and then use something decent in that weight/spec.
True.

What he said.
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Old 18-11-2008, 08:27 AM   #6
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SIN80 is what Penrite recommend from memory, I'll have to have a look and see what we've got but Im betting I dont have any in stock in that weight.
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Old 18-11-2008, 09:08 AM   #7
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Quote:
Originally Posted by b2tf
SIN80 is what Penrite recommend from memory, I'll have to have a look and see what we've got but Im betting I dont have any in stock in that weight.
So they are specced the same, 80 is what the IRS diff is supposed to have but 85 is what fixes the clunks.
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Old 18-11-2008, 12:43 PM   #8
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I got some oil for mums xr6 (3.45 LSD - non IRS) and the books recomended to use 80w - 140 synthetis, Which Nulon was what they had. Gold bottle at Auto One mate.
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Old 18-11-2008, 02:05 PM   #9
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Mobil LS85W90, has additives already in oil
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Old 18-11-2008, 02:20 PM   #10
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The diff in both my AU's would whine alot so I took some advice from a number of people and settled on Redline heavy grade Shockproof 85 W 250 diff oil
It might create some drag as it is so thick but the whine stopped straight away and I've had no problems
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Old 18-11-2008, 07:04 PM   #11
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Sounds like 85w is the go then. Matt what do you reckon the chances of me going to Auto One are :

Whats the additive to stop the cone chatter called?
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Old 18-11-2008, 07:54 PM   #12
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Quote:
Originally Posted by b2tf
Sounds like 85w is the go then. Matt what do you reckon the chances of me going to Auto One are :

Whats the additive to stop the cone chatter called?
Penrite LSD additive
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Old 18-11-2008, 08:07 PM   #13
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Quote:
Originally Posted by Russell
Penrite LSD additive
Go figure eh?
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Old 19-11-2008, 11:13 AM   #14
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[QUOTE=b2tf]Sounds like 85w is the go then. Matt what do you reckon the chances of me going to Auto One are :

SFA basically - Not just auto one but any retail auto parts store
Me either - I am a smart shopper.
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Old 19-11-2008, 11:55 AM   #15
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Quote:
Originally Posted by b2tf
Sounds like 85w is the go then. Matt what do you reckon the chances of me going to Auto One are :

Whats the additive to stop the cone chatter called?

Very slim haha
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Old 19-11-2008, 06:54 PM   #16
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Just to clarify, this is the one I'm looking at using:



http://royalpurple.com/gear-oil.html

Comes in 85w140 so it should do the job.
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Old 19-11-2008, 07:54 PM   #17
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keep me informed of how it goes B2TF
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