2016 Jeep Wrangler Coolant Capacity & Type

Your 2016 Jeep Wrangler holds approximately 10-14 quarts (9.5-13.2 liters) of coolant, depending on the engine.

Quick Answer

• Total Cooling System Capacity:
  • 3.6L V6: ~10.5 quarts (9.9 liters)
  • 2.8L Diesel: ~12.5 quarts (11.8 liters)
  • 6.4L V8 (Aftermarket Conversions): ~14 quarts (13.2 liters)
• OEM Coolant Spec: Orange/Pink Hybrid Organic Acid Technology (HOAT) or Purple Organic Acid Technology (OAT) coolant meeting Chrysler MS-90032 (HOAT) or MS-12106 (OAT) specifications. Always refer to your owner's manual for the most accurate and up-to-date specification. Mopar Antifreeze/Coolant 10 Year/150,000 Mile Formula HOAT or OAT is recommended.
• Mix Ratio: Typically 50/50 pre-mixed solution, or a 50/50 mix of concentrate and distilled water.

Capacity by Engine Option

The coolant capacity in your 2016 Jeep Wrangler varies slightly depending on the engine installed:

Note: Aftermarket engine conversions, such as a 6.4L HEMI V8, will have different cooling system requirements. Always consult the specific conversion documentation for accurate capacities and coolant types.

Flush Interval

Maintaining the correct coolant and ensuring it's fresh is crucial for your Wrangler's longevity. Here are the recommended flush intervals:

• Normal Duty: Replace coolant every 5 years or 100,000 miles, whichever comes first.
• Severe Duty: If you frequently tow, drive in extreme temperatures, or use your Wrangler for off-roading, consider replacing the coolant every 3 years or 50,000 miles.

Regularly check your coolant level and condition. If it appears discolored, sludgy, or shows signs of contamination, it's time for a flush and refill regardless of mileage or time.

How to Refill & Bleed

Refilling and bleeding the cooling system on a 2016 Jeep Wrangler is important to prevent air pockets, which can cause overheating.

1. Drain the System: With the engine cool, place a drain pan under the radiator. Open the radiator drain cock (petcock) located on the bottom of the radiator. Remove the radiator cap to allow the system to drain completely.
2. Flush (Optional but Recommended): Once drained, close the drain cock and fill the system with distilled water. Run the engine with the heater on high until it reaches operating temperature. Drain again. Repeat until the drained water is clear. For a thorough flush, consider using a dedicated cooling system cleaner following the product's instructions.
3. Refill: Close the drain cock. Begin refilling the radiator with the specified 50/50 coolant mix. Slowly pour the coolant to avoid introducing air. Fill the overflow reservoir to the "COLD" mark.
4. Bleed the System:
   • Start the engine with the radiator cap off (or use a spill-free funnel).
   • Turn the heater to its highest setting (full hot and high fan speed) to open the heater core valve and allow coolant to flow through it.
   • As the engine warms up, coolant will be drawn into the system. You may see air bubbles escaping. Continue to add coolant to keep the level full until no more bubbles appear and the thermostat opens (you'll see coolant flow and the upper radiator hose will get hot).
   • On the 3.6L Pentastar engine, there isn