For the 2017 Grand Cherokee, use a HOAT (Hybrid Organic Acid Technology) coolant that meets Chrysler/Jeep Type 2 specifications, such as Mopar Antifreeze/Coolant Type 2 HOAT. It can be used as a premixed 50/50 solution or as concentrate mixed with distilled water. Do not use Dex-Cool or other coolants not rated for Mopar.
Choosing the right antifreeze
Chrysler/Jeep engines require a long-life, silicate-free HOAT coolant labeled as Type 2. The official Mopar option is Type 2 HOAT, designed for aluminum engines and a service life of about five years or 100,000 miles. If you choose an aftermarket alternative, ensure it is HOAT, silicate-free, and explicitly listed as compatible with Chrysler/Jeep/D Dodge vehicles.
There are a few approved options that meet this specification, including the factory Mopar option and compatible aftermarket HOAT coolants.
- Mopar Antifreeze/Coolant Type 2 HOAT (blue), 5-year/100,000-mile life; available as premixed 50/50 or as concentrate to be mixed with distilled water.
- Other brand HOAT coolants labeled as compatible with Chrysler/Jeep vehicles (silicate-free, 5-year/100k life).
- Premixed 50/50 formulations designed for Chrysler/Jeep that state compatibility with Mopar Type 2 HOAT on the label.
When shopping, verify the product explicitly claims Chrysler/Jeep compatibility, is silicate-free, and is HOAT (not Dex-Cool or a universal coolant unless specified for Mopar).
Mixing, filling, and maintenance
Follow a careful process to ensure you get the right blend and air pockets out of the system. If you’re unsure, a professional service is best.
- Ensure the engine is completely cold before opening any coolant reservoir cap to avoid scalding or pressure release.
- Open the reservoir cap and check the current coolant level. Do not remove the radiator cap while the engine is hot.
- If you’re topping off, use a premixed 50/50 HOAT coolant. If you’re using concentrate, mix 50% concentrate with distilled water before adding.
- Fill the reservoir to the MAX/Full line. If you’re flushing or refilling entirely, follow the manufacturer’s flush procedure and fill slowly to prevent air pockets.
- Run the engine with the cap off for a few minutes and watch for air pockets or bubbling; replace the cap and recheck levels after cooling.
- Check for leaks and ensure the cap is properly seated and the cooling system is pressurized correctly.
Maintaining the proper coolant level and type is essential for engine protection and preventing overheating. If in doubt, always consult the owner’s manual or a dealer service department.
Summary
For a 2017 Jeep Grand Cherokee, use a HOAT coolant compatible with Chrysler/Jeep Type 2. The easiest option is Mopar Antifreeze/Coolant Type 2 HOAT, in premixed 50/50 or concentrated form mixed with distilled water. Always avoid Dex-Cool or universal coolants unless explicitly rated for Mopar, and follow the manufacturer’s mixing and maintenance guidelines. If you’re not comfortable performing the work, seek professional service.