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What Gearbox and Diff Oil To Use In A EF XR8 

 

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 Post subject: What Gearbox and Diff Oil To Use In A EF XR8
Posted: Mon Jul 16, 2007 1:19 am 
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will be doing a gearbox and diff service sometime this week. Just wondering what brand/type of oil you guys use.

As stated the car is a 95 ef xr8 with 5spd el xr8 gearbox and 3.45lsd

any advice is much appreciated

cheers

 

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Posted: Mon Jul 16, 2007 11:20 pm 
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no one out there has a t5 v8 :?

 

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Posted: Mon Jul 16, 2007 11:23 pm 
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As far as the T5 goes i just used what Ford specifies. ATF (DXII) and some form of additive. The book says Lubrizol but i used Nulon G70 and so far so good. Synchros on mine are rooted and after new oil feels abit smoother and also goes into first easier at very low speed.

 

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Posted: Mon Jul 16, 2007 11:45 pm 
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for your diff i believe a good 90w140 penrite etc,its thicker than ls90 if the diffs done a few kms and a friction additive
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Posted: Wed Jul 18, 2007 12:29 am 
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for those interested ive decided to go with the following:

- g/box - castrol transmax z (with lubrizol additive)

- diff - Penrite SIN Gear Oil 80w - 140

thanks for the replies

 

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Posted: Wed Jul 18, 2007 12:33 am 
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nannas_ed wrote:
for those interested ive decided to go with the following:

- g/box - castrol transmax z (with lubrizol additive)

- diff - Penrite SIN Gear Oil 80w - 140

thanks for the replies


Good stuff mate. Let us know if anything changes/improves.

Also, how much was the lubrizol additive, out of interest?

 

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Posted: Wed Jul 18, 2007 12:44 am 
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XH5LWEPN wrote:
nannas_ed wrote:
for those interested ive decided to go with the following:

- g/box - castrol transmax z (with lubrizol additive)

- diff - Penrite SIN Gear Oil 80w - 140

thanks for the replies


Good stuff mate. Let us know if anything changes/improves.

Also, how much was the lubrizol additive, out of interest?


not sure i havnt bought it yet (from memory its about $7), will be getting it all tommorow and the doing fluid changes sometime in the next few nights (has to be running by saturday morning :D)

 

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Posted: Wed Jul 18, 2007 10:57 pm 
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XH5LWEPN wrote:
Also, how much was the lubrizol additive, out of interest?



just bought all the gear today and the additive was $14

 

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Posted: Thu Jul 19, 2007 7:54 am 
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Yea, I use Transmax Z in the T5..but I'm curious,. where did you find the Lubrizol? I've never been able to source any....?
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Posted: Thu Jul 19, 2007 8:04 am 
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The so called claimed best fluid is Redline Shockproof light.

However the othr 'best' fluid claimed by many builders inc. JMM is

T5
Castrol Transmax Z (with no lubrizol as it contains a friction modifier already)
$70 4lts
Diff
Castrol SAF-XA
$28 ltr

all are fully synthetic.

You use the Lubrizol 7906 with ATF and mineral oils to aid in the baulking problem that is common with some ford and holden gearboxes.

Some Autobarn's sell Lubrizol, and it comes in a 35yr old 150ml bottle.
common price is $9.95 but since autobarn only sells rice now, you might need to find an independent dealer.


I found that Penrite 80/140 diff oil is thick as.
I've always used castrol LSX90 and never had an issue.
But for my next diff/car I shall be using the SAF-XA

 

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Posted: Thu Jul 19, 2007 7:59 pm 
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dunno about the earlier models but in the AU XR's they recommend the castrol sa as it is synthetic and helps with the seals in the diff, esp the IRS variety

 

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Posted: Fri Jul 20, 2007 12:22 am 
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i was doing some research on net the net about different oils and bought the lubrzoil because it was recomended to be used with tranzmax z on the cstrol website

 

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Posted: Fri Jul 20, 2007 12:23 am 
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the_scotsman wrote:
Yea, I use Transmax Z in the T5..but I'm curious,. where did you find the Lubrizol? I've never been able to source any....?



picked it off the shelf at autopro

 

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Posted: Fri Jul 20, 2007 12:26 am 
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or Burosn auto parts have it or can get it

 

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