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Jeep Wrangler Fluid Capacities

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Shop Wrangler Oils & Fluids

We know it is important to actively monitor the fluids that keep your Wrangler running. Find out what the fluid capacities are for your Jeep JK, YJ and TJ are!

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In order to ensure your Wrangler stays in prime running condition it's best practice to routinely check the fluids. It's better to prevent issues from arising then fixing them when they do. Here are the fluid capacities laid out for your Jeep JK, YJ and TJ.

2019 JL 4-Door Wrangler with Barricade Bumper.jpg

Jeep Wrangler JL Fluid Capacities

Component Quantity Fluid Type
2-Door Gas Tank 18.5 Gallons 91 Octane
4-Door Gas Tank 21.5 Gallons 87 Octane
2.0L Engine Oil 5 Quarts 5w-30
3.6L Engine Oil 0w-20
2.0L Engine Cooling System 9.9 Quarts Mopar Antifreeze
2.0L Intercooler w/o MGU 3.2 Quarts
2.0L Intercooler w/ MGU 3.5 Quarts
3.6L Engine Cooling System 10.7 Quarts
Automatic Trans   Mopar ZF 8 or 9
Manual Trans Mopar ATF 4
Transfer Case
186 FBI - Front Axle 1.82 Pints 80w-90
210 FBI - Front Axle 2.18 Pints
200 RBI - Rear Axle 2.43 Pints 80w-90, if towing 75w-140
220 RBI - Rear Axle w/ EDL 3.06 Pints
220 RBI - Rear Axle w/ T/L 3.02 Pints
Brake Master Cylinder   DOT 3 or 4
Power Steering Fluid Mopar ATF 4

Jeep Wrangler JK Fluid Capacities

If you like to do your own service on your JK Wrangler you will need to know the specifications for fluid changes. This information is in the owners manual and service manual but has also been compiled here for quick reference.

Component Quantity Fluid Type
3.8L Engine Oil 6 Quarts / 5.7 Liters 5w-20
3.6L Engine Oil 6 Quarts / 5.6 Liters
Brake Fluid Fill to Full Mark DOT 3
Clutch Fluid
Power Steering Reservoir ATF 4
3.8L Cooling System 13 Quarts 50/50 Antifreeze/Water Mix
3.6L Cooling System (2013-2018) 10.5 Quarts
3.6L Cooling System (2012) 13 Quarts
NSG370 6-Speed Manual 1.6 Quarts / 1.5 Liters Mopar Manual Trans Lubricant or Equivalent
NAG1 5 Speed Auto 5.3 Quarts for Pan Drop, 8.1 Quarts for Dry Fill ATF 4
545RFE (4x2) 5-Speed Auto 5.5 Quarts for Pan Drop, 14.8 Quarts for Dry Fill
545RFE (4x4) 5-Speed Auto 6.5 Quarts for Pan Drop, 16.9 for Dry Fill
42RLE 4-Speed Auto 4 Quarts for Pan Drop, 8.8 Quarts for Dry Fill
NV241 Transfer Case 2.2 Quarts / 2 Liters
Dana 30 Axle 2.1 Pints / 1.0 Liters 80w-90
Dana 35 Axle 3.5 Pints / 1.7 Liters
Dana 44 Front Axle 2.7L / 1.3 Liters
Dana 44 Rear Axle* 4.75 Pints / 2.25 Liters
*75w-140 recommended in rear differentials for warm weather towing applications. For axles with the Trac-lok differential add 3.4 oz. of limited-slip additive.

Jeep Wrangler TJ Fluid Capacities

If you like to do you own service on your TJ you will need to know the specifications for fluid changes. This information is in the owners manual and service manual but has also been compiled here for quick reference.

Component Quantity Fluid Type
4.2L Engine Oil 6 Quarts / 5.7 Liters 10w-30 or 5w-30
4.0L Engine Oil
2.5L Engine Oil 4 Quarts / 3.8 Liters
2.4L Engine Oil
Brake Fluid Fill to Full Mark DOT 3
Clutch Fluid
Power Steering Reservoir ATF 4
4.0L Coolant 10.5 Quarts / 9.9 Liters 50/50 Mixture of Antifreeze and water
2.5L Coolant 10.1 Quarts / 9.6 Liters
2.4L Coolant 9 Quarts / 8.5 Liters
NV231 Transfer Case 1.1 Quarts / 1.1 Liters ATF 3 or ATF 4
NV241 Transfer Case 2.1 Quarts / 2 Liters ATF 4
AX-5 5-Speed Manual 3.3 Quarts / 3.1 Liters 75w-90 GL3 or GL4
AX-15 5-Speed Manual
NV3550 5-Speed Manual 2.1 Quarts / 2.0 Liters Mopar fluid (04874464AA) or Synchromax
NV1500 5-Speed Manual 2.4 Quarts / 2.3 Liters
NSG370 6-Speed Manual 1.6 Quarts / 1.5 Liters
30RH 3-Speed Automatic 4 Quarts for Pan Drop / 8.6 Quarts for Dry Fill ATF 4
32RH 3-Speed Automatic 4 Quarts for Pan Drop / 8 Quarts for Dry Fill
42RLE 4-Speed Automatic 4 Quarts for Pan Drop / 8.8 Quarts for Dry Fill
Dana 30 Axle 1.3 Quarts / 1.2 Liters 80w-90*
Dana 35 Axle 1.8 Quarts / 1.7 Liters
Dana 44 Axle 2.0 Quarts / 1.9 Liters
*75w-140 recommended in rear differentials for warm weather towing applications. For axles with the Trac-lok differential add 4 oz. of limited-slip additive.

Jeep Wrangler YJ Fluid Capacities

If you like to do your own service on your YJ you will need to know the specifications for fluid changes. This information is in the owners manual and service manual but has also been compiled here for quick reference.

Component Quantity Fluid Type
4.0L Engine Oil 6 Quarts / 5.7 Liters 10w-30 or 5w-30
4.2L Engine Oil
2.5L Engine Oil 4 Quarts / 3.8 Liters
4.0L Coolant 10.5 Quarts / 9.9 Liters 50/50 Mixture of Antifreeze and water
4.2L Coolant
2.5L Coolant 9.0 Quarts / 8.5 Liters
NV231 Transfer Case (Man Trans) 1.6 Quarts / 1.5 Liters ATF 3 or ATF 4
NV 231 Transfer Case (Auto Trans) 1.1 Quarts / 1 Liter ATF 4
AX-5 5-Speed Manual 3.5 Quarts / 3.3 Liters 75w-90 GL3 or GL4
AX-15 5-Speed Manual
Peugeot BA-10/5 2.5 Quarts / 2.3 Liters
TF 904 2.4 Quarts / 2.3 Liters ATF 4
TF 999 1.6 Quarts / 1.5 Liters
Dana 30 1.7 Quarts / 1.6 Liters 80w-90*
Dana 35
*75w-140 recommended in rear differentials for warm weather towing applications. For axles with the Trac-lok differential add 2 oz. of limited-slip additive.

Oil Viscosity Basics

The numbers on the bottles all relate to the thickness of the oil at certain temperature thresholds. With 0 being the viscosity of water, higher numbers mean thicker/slower flowing oils. In short, a 5w-30 oil flows faster than a 10w-40 oil. 

The "w" in the viscosity indicates the oil's viscosity in winter temperatures. Generally, a faster flowing oil in colder temperatures is desirable because this means more internals get oil at startup faster than a slower flowing oil, reducing wear and tear on your engine.

In terms of gear oil, you'll see ratings like GL-3 and GL-4. The higher the number, the more lubricity the gear oil has, but also the more additives. At first, the main difference between the two was the EP additives comprising of phosphorus and sulfur compounds which will corrode metals like copper and bronze. Needless to say, as much as a better lubricant is good for your trans, the EP additives will eat synchronizers. Nowadays, the main differences between GL-3, GL-4, and GL-5 are pressure additives. These pressure additives handle closer tolerances between gears, but the issue this can cause is the additives are more durable than the gears themselves, slowly chipping away at the metals. If you see a GL-4 bottle that's also rated for GL-3, this means it doesn't have a worrying amount of additives. If it's a GL-4 bottle without the GL-3 rating, don't use it in a transmission calling for GL-3.

ATF+4 and ATF+3, on the other hand, are significantly simpler. ATF+4 was developed to succeed ATF+3 applications and degrade much slower. Where a transmission with ATF+3 might experience some shudder at around the 30k mile mark, the same trans with ATF+4 shouldn't experience shudder until 80-100k miles (depending on driving conditions). In short, ATF+4 is a complete replacement for ATF+3.

Fitment includes: JL, JK, TJ, YJ, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, Laredo, Sport, Islander, S, Sahara, Renegade, SE, X, Rubicon, Unlimited, Sport-S