2017 Jeep Grand Cherokee — Coolant Capacity & Type

The 2017 Jeep Grand Cherokee holds approximately 13.5 to 17.0 quarts (12.8–16.1 liters) of coolant depending on engine and cooling package.

Quick answer

• Total cooling system capacity: roughly 13.5–17.0 qt (12.8–16.1 L), engine- and package-dependent
• OEM coolant spec: Mopar Antifreeze/Coolant 10 Year/150,000 Mile OAT (purple), OAT chemistry, FCA spec MS-12106
• Mix ratio: 50/50 with distilled water (or use Mopar pre-mixed 50/50); acceptable range 40–60% antifreeze

Capacity by engine option

Notes:

• Capacity varies slightly by radiator size, tow/HD cooling package, and how thoroughly the system is drained.
• If you only drain the radiator, you’ll remove less than the full system capacity; a vacuum-fill after opening block/engine drains (where applicable) gets you closest to the total.

Flush interval

• Normal service: First coolant replacement at 10 years or 150,000 miles (240,000 km) with Mopar OAT (MS-12106). Thereafter, many FCA schedules call for 5 years/100,000 miles between changes.
• Severe service (frequent towing, extreme temps, dusty/off‑road): Inspect annually; service around 5 years/100,000 miles or sooner if tests show depletion, contamination, or incorrect mixture.
• Important: Do not mix OAT (purple) with older HOAT/IAT coolants (often orange/yellow/green). Mixing can cause gel/sludge and heater core restrictions.

How to refill & bleed

1. Start cold. Set heater to full hot. Disconnect the negative battery cable if working near fans.
2. Drain: Open the radiator draincock (bottom tank; catch and recycle coolant). Some engines drain more completely if a lower hose is removed. Close the drain.
3. Open the bleeder: There is a bleed screw at the thermostat/water outlet on most engines (3.6L on the outlet near the upper hose; 5.7L/6.4L on the water neck; EcoDiesel has a high-point bleeder—vacuum fill is strongly recommended).
4. Fill slowly with Mopar OAT coolant:
   • Premix 50/50: pour directly.
   • Concentrate: mix 50/50 with distilled water before filling.
5. When a steady, bubble‑free stream exits the bleeder, close it. Fill the degas bottle to the COLD mark.
6. Initial bleed: Start the engine, cabin heat on HOT/LOW blower. Let idle to operating temp (fans cycle on) while monitoring level; top up to the MAX COLD line as needed.
7. Cool down and recheck: After a complete cool‑down, verify the reservoir is at the COLD mark. Repeat a second heat cycle if any gurgling, fluctuating heat, or level drop is noted.
8. Best practice: Use a vacuum-fill tool to eliminate trapped air—especially on the EcoDiesel and SRT cooling packages where the heater core and EGR circuits sit high.

Tips

• Use only Mopar OAT MS-12106 (purple). If unsure what’s in the system, fully flush with distilled water until clear before refilling with OAT.
• Replace the reservoir cap if it won’t hold pressure or you observe repeated overflow/underflow between hot and cold.

Common cooling system issues (2017 WK2)

• Coolant mixing/contamination: Prior use of HOAT or universal coolant mixed with OAT can create brown sludge and heater core restriction. Full chemical flush and core back‑flushing may be required.
• Water pump seepage/noise (3.6L and 5.7L/6.4L): Look for crust at the weep hole and coolant smell after shutdown. Replace pump and belt as needed.
• Thermostat or housing leaks (3.6L): The outlet/thermostat housing can crack or the gasket can seep; symptoms include slow loss and long warm‑up times.
• Radiator end‑tank cracks or stone damage: Especially on tow/HD cooling packages; pressure test if there’s persistent loss with no visible leaks.
• Heater performance issues/air pockets: Incomplete bleeding leads to intermittent heat or temp gauge swings. Vacuum‑fill or use the bleeder at the water outlet and repeat heat cycles.
• EcoDiesel EGR cooler leaks: May cause unexplained coolant loss and white exhaust vapor on cold start; inspect under extended warranty/recall coverage where applicable.

Use the ranges above to plan your coolant purchase; most 2017 Grand Cherokees will take about 2 gallons of concentrate plus 2 gallons of distilled water for a full refill, with some left over for top‑offs.

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