Wrangler JK Fluid Capacities

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.