Some more info for you all... This is for the 07, but I'm sure they are close for all years.
SPECIFICATIONS FLUID CAPACITIES
DESCRIPTION............................................................................ SPECIFICATION
FUEL TANK
2.8L.... .................................................................... 70.01(18.5 U.S. Gallons)*
3.7L/4.0L..................................................................73.81(19.5 U.S. Gallons)*
ENGINE OIL
2.8L with Filter.......................................................................6.6L (7.0 Quarts)
3.7L with Filter.......................................................................4.7L (5.0 Quarts)
4.0L with Filter.......................................................................5.7L (6.0 Quarts)
ENGINE COOLANT
2.8L.....................................................................................12.5L(1 1.8 Quarts)
3.7L.....................................................................................13.2L (14.0 Quarts)
4.0L.....................................................................................13.2L (14.0 Quarts)
POWER STEERING SYSTEM
Power steering fluid capacities are dependent on engine/chassis options as well as steering gear/cooler options.
Depending on type and size of internal cooler, length and inside diameter of cooler lines, or use of an auxiliary cooler, these capacities may vary.
A/C REFRIGERANT SYSTEM
Single Unit.........................................0 kg (1.125 Pounds, 18Oz)
AUTOMATIC TRANSMISSION
Service Fill -NAG1..................................................................5.0 L (10.6 Pints)
O-haul Fill - NAG1..................................................................7.7 L (16.3 Pints)
Service Fill - 42RLE....................................................................3.8L (8.0 Pints)
O-haul Fill - 42RLE......................................................................8.3L(17.6 Pints)
Dry fill capacity depending on type and size of internal cooler, length and inside diameter of cooler lines, or use of an auxiliary cooler, these figures may vary.
TRANSFER CASE
MP140...........................................................................................85L(1.80 Pints)
MP143............................................................................................85L(1.80 Pints)
MANUAL TRANSMISSION
(Approximate dry fill or fill to bottom edge of the fill plug hole.)
NSG370.........................................................................................1.5L(3.17 Pints)
FRONT AXLE
186 FlA (Model 30).........................................................................1.24L(2.6 Pints)
REAR AXLE
8 1/4.........................................................................................2.08L (4.4 Pints.)
*Nominal refill capacities are shown. A variation may be observed from vehicle to vehicle due to manufacturing tolerance and refill procedure.