Wrangler fluid capacities are not a one-size-fits all proposition. In order to keep your JK in running condition, you have to make sure that the fluid levels are kept within optimal range, and if necessary, to replace missing fluid with the correct type.
Wrangler fluid capacities are not a one-size-fits all proposition. In order to keep your JK in running condition, you have to make sure that the fluid levels are kept within optimal range, and if necessary, to replace missing fluid with the correct type. Capacities in the JK Wrangler can vary depending on the year, make and model of your Jeep. The chart below will help you determine what type of oil to use for your JK, which transmission fluid you should use if your JK is a manual transmission, and what the limits are for your engine’s oil. Understanding the types and limits of fluid used for the cooling system, lubes, and transfer case fluids are crucial to keep your JK running and performing for many years to come. Take care of your Jeep and it will take care of you.
While maintaining all fluid capacities is important, one of the key areas to keep an eye on with the JK is the differentials. What is nice about the JK Wrangler is that you don’t have to remove the differential cover in order to make sure the fluid level is maintained. In general, if you do heavy driving, then differential fluids need to be changed every 15,000 miles, or the recommended mileage as listed in your owner’s manual. Submerging your axles in water will also make a difference on how often you service this crucial area. Understand that your JK Wrangler is made to handle all types of terrain, but you do have to do your part in maintaining its fluid levels, and preventing issues beforehand is much less expensive than corrective measures later. The following charts list the fluid capacities and types for your JK Wrangler.
Description | Type | Capacities |
|---|---|---|
| 3.8L Engine Oil | 5W-20 | 6 Quarts / 5.7 Liters |
| 3.6L Engine Oil | 5W-20 | 6 Quarts / 5.7 Liters |
| 2.8L Diesel Engine Oil | 0W-40 *Diesel Engine Oil | 7 Quarts / 6.6 Liters |
| 3.8L Coolant | 50/50 Mixture 5 Year/100,000 Mile Formula HOAT (Hybrid Organic Additive Technology) or equivalent | 13 Quarts / 12 Liters |
| 3.6L Coolant 2013-17 | 50/50 Mixture 10 Year/150,000 Mile Formula OAT (Organic Additive Technology) or equivalent | 10.5 Quarts / 9.9 Liters |
| 3.6L Coolant 2012 | 50/50 Mixture 5 Year/100,000 Mile Formula HOAT (Hybrid Organic Additive Technology) or equivalent | 13 Quarts / 12 Liters |
| 2.8L Diesel Coolant 2013-17 | 50/50 Mixture 10 Year/150,000 Mile Formula OAT (Organic Additive Technology) or equivalent | 13 Quarts / 12 Liters |
| 2.8L Diesel Coolant 2007-12 | 50/50 Mixture 5 Year/100,000 Mile Formula HOAT (Hybrid Organic Additive Technology) or equivalent | 13 Quarts / 12 Liters |
| 42RLE 4-Speed Automatic | ATF+4 | 4 Quarts / 3.8 Liters (Service Fill) 8.8 Quarts / 8.3 Liters (Overhaul Fill) |
| 545RFE (4x2) 5-Speed Automatic | ATF+4 | 5.5 Quarts / 5.2 Liters (Service Fill) 14.8 Quarts / 14 Liters (Overhaul Fill) |
| 545RFE (4x4) 5-Speed Automatic | ATF+4 | 6.5 Quarts / 6.2 Liters (Service Fill) 16.9 Quarts / 16 Liters (Overhaul Fill) |
| NAG1, 5-Speed Automatic | ATF+4 | 5.3 quarts / 5 Liters (Service Fill) 8.1 Quarts / 7.7 Liters (Overhaul Fill) |
| NSG370 Manual | Mopar Manual Transmission Lubricant or equivalent | 1.6 Quarts / 1.5 Liters |
| NV241 Transfer Case | ATF+4 | 2.1 Quarts / 2.0 Liters |
| Dana 30 - Front Axle | 80W-90 Gear and Axle Lubricant | 2.1 Pints / 1.0 Liters |
| Dana 44 - Front Axle | 80W-90 Gear and Axle Lubricant | 2.7 Pints / 1.3 Liters |
| Dana 35 Axle | 80W-90 Gear and Axle Lubricant | 3.5 Pints / 1.7 Liters |
| Dana 44 - Rear Axle | 80W-90 Gear and Axle Lubricant | 4.75 Pints / 2.25 Liters |
| *Limited-Slip (Trac-lok) Rear Axles require the addition of 118 ml (4 oz.) Limited Slip Additive | ||
| *75W140 Gear and Axle Lubricant Recommended For Towing | ||
| Brake Master Cylinder | DOT 3 Brake Fluid | As Required / To Full Mark |
| Clutch Master Cylinder | DOT 3 Brake Fluid | As Required / To Full Mark |
| Power Steering Reservoir | Power Steering Fluid +4 (If unavailable ATF+4 is Acceptable) | As Required / To Full Mark |
Type: 5W-20
Capacities: 6 Quarts / 5.7 Liters
Description: 3.6L Engine Oil
Type: 5W-20
Capacities: 6 Quarts / 5.7 Liters
Description: 2.8L Diesel Engine Oil
Type: 0W-40 *Diesel Engine Oil
Capacities: 7 Quarts / 6.6 Liters
Description: 3.8L Coolant
Type: 50/50 Mixture 5 Year/100,000 Mile Formula HOAT (Hybrid Organic Additive Technology) or equivalent
Capacities: 13 Quarts / 12 Liters
Description: 3.6L Coolant 2013-17
Type: 50/50 Mixture 10 Year/150,000 Mile Formula OAT (Organic Additive Technology) or equivalent
Capacities: 10.5 Quarts / 9.9 Liters
Description: 3.6L Coolant 2012
Type: 50/50 Mixture 5 Year/100,000 Mile Formula HOAT (Hybrid Organic Additive Technology) or equivalent
Capacities: 13 Quarts / 12 Liters
Description: 2.8L Diesel Coolant 2013-17
Type: 50/50 Mixture 10 Year/150,000 Mile Formula OAT (Organic Additive Technology) or equivalent
Capacities: 13 Quarts / 12 Liters
Description: 2.8L Diesel Coolant 2007-12
Type: 50/50 Mixture 5 Year/100,000 Mile Formula HOAT (Hybrid Organic Additive Technology) or equivalent
Capacities: 13 Quarts / 12 Liters
Description: 42RLE 4-Speed Automatic
Type: ATF+4
Capacities: 4 Quarts / 3.8 Liters (Service Fill) 8.8 Quarts / 8.3 Liters (Overhaul Fill)
Description: 545RFE (4x2) 5-Speed Automatic
Type: ATF+4
Capacities: 5.5 Quarts / 5.2 Liters (Service Fill) 14.8 Quarts / 14 Liters (Overhaul Fill)
Description: 545RFE (4x4) 5-Speed Automatic
Type: ATF+4
Capacities: 6.5 Quarts / 6.2 Liters (Service Fill) 16.9 Quarts / 16 Liters (Overhaul Fill)
Description: NAG1, 5-Speed Automatic
Type: ATF+4
Capacities: 5.3 quarts / 5 Liters (Service Fill) 8.1 Quarts / 7.7 Liters (Overhaul Fill)
Description: NSG370 Manual
Type: Mopar Manual Transmission Lubricant or equivalent
Capacities: 1.6 Quarts / 1.5 Liters
Description: NV241 Transfer Case
Type: ATF+4
Capacities: 2.1 Quarts / 2.0 Liters
Description: Dana 30 - Front Axle
Type: 80W-90 Gear and Axle Lubricant
Capacities: 2.1 Pints / 1.0 Liters
Description: Dana 44 - Front Axle
Type: 80W-90 Gear and Axle Lubricant
Capacities: 2.7 Pints / 1.3 Liters
Description: Dana 35 Axle
Type: 80W-90 Gear and Axle Lubricant
Capacities: 3.5 Pints / 1.7 Liters
Description: Dana 44 - Rear Axle
Type: 80W-90 Gear and Axle Lubricant
Capacities: 4.75 Pints / 2.25 Liters
*Limited-Slip (Trac-lok) Rear Axles require the addition of 118 ml (4 oz.) Limited Slip Additive
*75W140 Gear and Axle Lubricant Recommended For Towing
Description: Brake Master Cylinder
Type: DOT 3 Brake Fluid
Capacities: As Required / To Full Mark
Description: Clutch Master Cylinder
Type: DOT 3 Brake Fluid
Capacities: As Required / To Full Mark
Description: Power Steering Reservoir
Type: Power Steering Fluid +4 (If unavailable ATF+4 is Acceptable)
Capacities: As Required / To Full Mark
