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  #1  
Old March 23rd, 2009, 10:41 AM
JBOD77
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Jonathan
1995 D90 ST Beluga Black
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Arrow Main Gearbox oil

1995 D90 with 37K on the clock. I'm getting bored waiting for spring and decided it was a good time to change ALL my fluids. Does anybody really change the main gearbox fluid? how bout the transfer case? I've been talking to some friends of mine with manual transmissions and the jury is still out. Just wondering what the consensus was on the forum.
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  #2  
Old March 23rd, 2009, 10:43 AM
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Just changed mine with royal purple syncromax in the trans and max gear in the t-case and diffs...
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  #3  
Old March 23rd, 2009, 10:47 AM
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Consensus is Redline MTL* for the main gearbox and 75w90 or 80w90 for the t-case. Change every 30k.

*there was a thread on MTL v. royal purple about six months ago for opinions. Mine is the royal purple is not the right spec.
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  #4  
Old March 23rd, 2009, 10:58 AM
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Help me out, I'm an Amsoil dealer. Should I use the ATF (the manual specs ATF dextron IID) or should I be using their syncromesh?
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  #5  
Old March 23rd, 2009, 11:10 AM
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Neither.

You need MTL. It's spec is between ATF and gearlube and is what is currently recommended by Land Rover.
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  #6  
Old March 23rd, 2009, 11:16 AM
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Quote:
Originally Posted by evilfij
Neither.

You need MTL. It's spec is between ATF and gearlube and is what is currently recommended by Land Rover.
Ron, The spec you're referring to is GL-4? if so than I can use the amsoil MTG no?
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  #7  
Old March 23rd, 2009, 11:27 AM
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No.

MTL is thinner than 75w90 GL-4

http://www.redlineoil.com/products_g...p?categoryID=7

This 70W80 GL-4 Gear Oil (SAE 5W30/10W30 engine oil viscosity) is designed for use in manual transmissions and transaxles. Provides excellent protection of gears and synchronizers and its balanced slipperiness provides a perfect coefficient of friction, allowing easier shifting. Popular in many BMW transmissions and in most Honda and Acura transaxle applications.


Ron
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  #8  
Old March 23rd, 2009, 12:02 PM
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So it is. 3 quarts of mtl on the way!! thanks !!!
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  #9  
Old March 23rd, 2009, 12:35 PM
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how much does the gearbox hold by itself?
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  #10  
Old March 23rd, 2009, 12:39 PM
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book says 5.6 pints....or 2.8 quarts.....wait transfer gearbox??? I was talking about the main gearbox (transmission)
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  #11  
Old March 23rd, 2009, 12:41 PM
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I use Moble 1 synthetic in my ZF auto box & Royal Purple gear oil in all other holes.
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  #12  
Old March 23rd, 2009, 12:52 PM
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Manual transmission gearbox takes between 2-3 quarts.
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  #13  
Old March 23rd, 2009, 01:18 PM
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MTL in the R-380 and I use Mobil One 75/90 in the LT230. Redline MTL is amazing.
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  #14  
Old March 24th, 2009, 08:48 AM
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Slight hijack but what the heck do you use to take the fill plug out of an R-380? Looks like a large torx bit.
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  #15  
Old March 24th, 2009, 10:30 AM
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It is a torx. I always forget the size, T55 I think.
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  #16  
Old March 24th, 2009, 08:06 PM
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t55 TORX
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  #17  
Old March 25th, 2009, 08:55 AM
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thanks.
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Can't you feel 'em circlin' (closin'in) honey?
Can't you feel 'em swimmin' around?
You got fins to the left, fins to the right,
and you're the only bait in town.
You got fins to the left, fins to the right,
and you're the only girl in town.

Jimmy Buffett


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  #18  
Old March 26th, 2009, 08:28 AM
JBOD77
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Jonathan
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hey ron, I was jsut looking at the Rave for the D90......Did I order enough oil? Says main gearbox is 9.5 quarts. and transfer case is 4.8 pnts? what gives??

"CAPACITIES
The following capacities are approximate and provided as a guide only. All oil levels must be set
using the dipstick or level plugs as applicable.
US units Imperial Metric
Fuel tank - usable capacity ................... 15.6 US gall 13.00 Imp gall 59,09 litre
Engine sump ...................................... 6.5 US quarts 10.70 Imp pt 6,01 litre
Additional capacity after
fitting new oil filter ................................. 1.2 US pt 1.00 Imp pt 0,56 litre
Main gearbox ..................................... 9.5 US quarts 15.70 Imp pt 9,10 litre
Transfer gearbox .................................... 4.8 US pt 4.00 Imp pt 2,30 litre
Front differential ..................................... 3.6 US pt 3.00 Imp pt 1,70 litre
Rear differential ...................................... 4.8 US pt 4.00 Imp pt 2,30 litre
Cooling system ..................................... 27.0 US pt 22.50 Imp pt 12,80 litre"
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  #19  
Old March 26th, 2009, 09:55 AM
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"Says main gearbox is 9.5 quarts."

In an automatic.

Manual 2.X quarts is enough. I have done it 4 times and never needed more.

Ron
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  #20  
Old March 26th, 2009, 10:03 AM
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cool thanks
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