Need some Help. Really Confused bout Differential Fluid Capacity!
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1st Gear
Joined: Feb 2011
Posts: 1
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Need some Help. Really Confused bout Differential Fluid Capacity!
Hey all,
Sorry for the long post, but I need some guidance please. I need to replace the front and rear (locking) differential fluid and the transfer case fluid. I read the directions posted by a member on another board that he received from a dealer. My concern is that the dealer wanted to charge me for 2 quarts for the front diff. I asked why when the owners manual says it takes 1.5 pints (.64 quarts). They checked with their technicians and were told the front takes a little over 1 quart. They fill it to the fill plug. I was concerned because the directions below state that the differentials are filled to the quantity, not the fill plug. I called 3 different dealers and got the same answer at all of them, so I called Land Rover USA and asked them. They spoke with the corporate technician and he stated that they fill it to the plug ( a little over a quart) and that is the way he trains all of the other techs. When I asked why it differentiated from the workshop manual and the owner manual they didn't have an answer, just "that's how we do it" I asked if there was a bulletin that came out that changed the fluid quantity and they said no there isn't one. They then went on to say that the "capacity only not to the plug" verbage was put there to protect themselves from consumers doing their own work and not knowing how to fill to the plug and overfilling the diffs. Odd though that the transfer case says to fill to the plug? I also find it odd that the manufacturer would tell the consumer to leave about 1/2 quart out of the front differential! So I am very confused.
My concern is that if I fill it to what the manual says (going against what the dealer and Land rover USA says, then if I have a differential issue then it becomes my fault because I didn't follow their recommendations. If I fill it to what they recommend and have a differential problem then I didn't follow what the manufacturer states in the manual. I followed the dealers "recommendation". Any help or advice would be greatly appreciated!! Thanks in advance!!
Shawn
These are the directions, cut and pasted from the other post:
Front Differential:
1. Remove engine skid plate
2. Clean area around drain and fill plugs, remove fill plug
3 Remove drain plug, drain fluid
4. Install drain plug; up to serial number 254845, tighten hexagonal drive drain plug to 54Nm (40 lb-ft), from serial number 254836, tighten 3/8" square drive drain plug to 28Nm (21 lb-ft)
5. Fill with 0.61 litres (1.07 pints) (0.64 US quarts) Castrol SAF-XO - 75W/90 (LRN 7591)
CAUTION: Do not use the fill plug as a level, fill with the correct quantity
6. Tighten filler plug to 34Nm (25 lb-ft)
7. Reinstall engine skid Plate.
Rear Differential:
1. Raise and support vehicle
WARNING: do not work under a vehicle supported by a jack
CAUTION: Do not undo or remove the large protruding hexagonal on the differential casing.
2. Clean the area around the differential fill plug and drain plug, remove the fill plug
3. Position container to collect fluid, remove the drain plug. Drain fluid
4. Install drain plug. Up to differential serial number 254325, tighten the hexagonal drive drain plug to 54Nm (40 lb-ft) from differential serial number 254326, tighten the 3/8" square drive drain plug to 28 Nm (21 lb-ft)
5. Refill with correct fluid and quantity;
Open unit: Castrol SAF - XO 75W/90 LRN 7591 1.1 Litres (2.3 US pints)(1.16 US Quarts)
Electronic torque managed differential: Castrol SAF Carbon Mod Plus LRN500070
1.5 litres (3.17 US pints) (1.6 US quarts)
CAUTION: make sure correct specification and quantity of oil is used
7. Install filler plug and tighten to 34Nm (25lb-ft)
Transfer case Draining and Filling
1. Raise and support vehicle (note the warning)
2. position a container to collect fluid
3. Clean area around fluid drain plug, remove plug and discard the sealing washer.
4. Allow fluid to drain
5. Clean component mating faces, install a new sealing washer, install drain plug and tighten to 22Nm (16lb-ft)
6. Remove the filler/level plug, clean the immediate are and discard the sealing washer
7. Refill transfer case with Shell TF 0753, LRN0753, until the fluid is level with the bottom of the filler/level plug hole. (1.5 litres)(2.6 US pints)(1.5 US quarts)
8. Install the fluid filler/level plug with a new sealing washer and tighten to 22Nm (16l lb-ft)
Sorry for the long post, but I need some guidance please. I need to replace the front and rear (locking) differential fluid and the transfer case fluid. I read the directions posted by a member on another board that he received from a dealer. My concern is that the dealer wanted to charge me for 2 quarts for the front diff. I asked why when the owners manual says it takes 1.5 pints (.64 quarts). They checked with their technicians and were told the front takes a little over 1 quart. They fill it to the fill plug. I was concerned because the directions below state that the differentials are filled to the quantity, not the fill plug. I called 3 different dealers and got the same answer at all of them, so I called Land Rover USA and asked them. They spoke with the corporate technician and he stated that they fill it to the plug ( a little over a quart) and that is the way he trains all of the other techs. When I asked why it differentiated from the workshop manual and the owner manual they didn't have an answer, just "that's how we do it" I asked if there was a bulletin that came out that changed the fluid quantity and they said no there isn't one. They then went on to say that the "capacity only not to the plug" verbage was put there to protect themselves from consumers doing their own work and not knowing how to fill to the plug and overfilling the diffs. Odd though that the transfer case says to fill to the plug? I also find it odd that the manufacturer would tell the consumer to leave about 1/2 quart out of the front differential! So I am very confused.
My concern is that if I fill it to what the manual says (going against what the dealer and Land rover USA says, then if I have a differential issue then it becomes my fault because I didn't follow their recommendations. If I fill it to what they recommend and have a differential problem then I didn't follow what the manufacturer states in the manual. I followed the dealers "recommendation". Any help or advice would be greatly appreciated!! Thanks in advance!!
Shawn
These are the directions, cut and pasted from the other post:
Front Differential:
1. Remove engine skid plate
2. Clean area around drain and fill plugs, remove fill plug
3 Remove drain plug, drain fluid
4. Install drain plug; up to serial number 254845, tighten hexagonal drive drain plug to 54Nm (40 lb-ft), from serial number 254836, tighten 3/8" square drive drain plug to 28Nm (21 lb-ft)
5. Fill with 0.61 litres (1.07 pints) (0.64 US quarts) Castrol SAF-XO - 75W/90 (LRN 7591)
CAUTION: Do not use the fill plug as a level, fill with the correct quantity
6. Tighten filler plug to 34Nm (25 lb-ft)
7. Reinstall engine skid Plate.
Rear Differential:
1. Raise and support vehicle
WARNING: do not work under a vehicle supported by a jack
CAUTION: Do not undo or remove the large protruding hexagonal on the differential casing.
2. Clean the area around the differential fill plug and drain plug, remove the fill plug
3. Position container to collect fluid, remove the drain plug. Drain fluid
4. Install drain plug. Up to differential serial number 254325, tighten the hexagonal drive drain plug to 54Nm (40 lb-ft) from differential serial number 254326, tighten the 3/8" square drive drain plug to 28 Nm (21 lb-ft)
5. Refill with correct fluid and quantity;
Open unit: Castrol SAF - XO 75W/90 LRN 7591 1.1 Litres (2.3 US pints)(1.16 US Quarts)
Electronic torque managed differential: Castrol SAF Carbon Mod Plus LRN500070
1.5 litres (3.17 US pints) (1.6 US quarts)
CAUTION: make sure correct specification and quantity of oil is used
7. Install filler plug and tighten to 34Nm (25lb-ft)
Transfer case Draining and Filling
1. Raise and support vehicle (note the warning)
2. position a container to collect fluid
3. Clean area around fluid drain plug, remove plug and discard the sealing washer.
4. Allow fluid to drain
5. Clean component mating faces, install a new sealing washer, install drain plug and tighten to 22Nm (16lb-ft)
6. Remove the filler/level plug, clean the immediate are and discard the sealing washer
7. Refill transfer case with Shell TF 0753, LRN0753, until the fluid is level with the bottom of the filler/level plug hole. (1.5 litres)(2.6 US pints)(1.5 US quarts)
8. Install the fluid filler/level plug with a new sealing washer and tighten to 22Nm (16l lb-ft)
Rock Crawling
Joined: Oct 2011
Posts: 480
Likes: 11
I'm gonna be honest here... I never looked at the fluid capacity for a LR3 (and if I did I don't remember).
My sincere apologies for any mis-information
The correct answer for capacity is
My sincere apologies for any mis-information
The correct answer for capacity is
Castrol SAF–XO
Initial fill:
0.68 liters
1.44 US pints
Service fill:
0.61 liters
1.29 US pints
Initial fill:
0.68 liters
1.44 US pints
Service fill:
0.61 liters
Last edited by threalassmikeg; Apr 26, 2012 at 07:31 PM.
Rock Crawling
Joined: Oct 2011
Posts: 480
Likes: 11
Here you go..
Rear Differential:
1.72 liters / 3.63 US pints
Transfer Box:
Shell TF0753
Initial fill:
1.50 liters
3.17 US pints
Service fill:Fill to level plug
Rear Differential:
Open Unit:
Castrol SAF–XO
Initial fill:
1.23 liters / 2.59 US pints
Service fill:
1.18 liters / 2.49 US pints
Castrol SAF–XO
Initial fill:
1.23 liters / 2.59 US pints
Service fill:
1.18 liters / 2.49 US pints
Electronic Unit:
Castrol BOT 720
Initial fill:
1.77 liters / 3.74 US pints
Service fill:
Castrol BOT 720
Initial fill:
1.77 liters / 3.74 US pints
Service fill:
1.72 liters / 3.63 US pints
Transfer Box:
Shell TF0753
Initial fill:
1.50 liters
3.17 US pints
Service fill:
Last edited by threalassmikeg; Apr 26, 2012 at 07:39 PM.
Mudding
Joined: May 2012
Posts: 205
Likes: 2
From: Austin TX
I too asked my local LR dealer about the transfer and differential fluid fill - they replied that they too would do a fill to the overflow not quantity, apparently on the basis that it can't do harm to add that little extra fluid...
It's a lot easier to overfill the regular engine oil probably and cause more damage than the differentials and transfer case....
It's a lot easier to overfill the regular engine oil probably and cause more damage than the differentials and transfer case....
Rock Crawling
Joined: Mar 2012
Posts: 269
Likes: 4
From: Northwest Indiana
Going to drain and fill my diffs this weekend. Can't find the Castrol SAF-XO (now called Syntrax) 75W90. What can be used in it's place?
Same for the rear locking diff; manual says Castrol SAF Crabon Mod Plus. Anything else compatible? I really don't want to go to the dealer for these fluids, but will if I can't finad a suitable replacement.
Same for the rear locking diff; manual says Castrol SAF Crabon Mod Plus. Anything else compatible? I really don't want to go to the dealer for these fluids, but will if I can't finad a suitable replacement.
Mudding
Joined: Mar 2010
Posts: 147
Likes: 5
From: Cowtown
For my front and open rear I went with the Castrol syntec diff fluid. Two years in and 40k kms it appears to be fine. The open diffs are just regular differentials, nothing special going on there except for LRs faulty breather tubes.. For your rear locker you may have to bite the bullet and visit a dealer for the special stuff.
