When Should I Flush the Coolant in My Car?

Coolant protects your engine by keeping the temperature steady and preventing corrosion inside the system. Over time it wears out, picks up debris, and loses effectiveness. That’s when a coolant flush comes in.

How Often to Flush Coolant

  • Most Chrysler, Jeep, Dodge, and Ram vehicles: about every 10 years or 150,000 miles with factory fill
  • Older models or those using traditional green coolant: about every 3 to 5 years
  • Always check your owner’s manual for the exact schedule

Here in Illinois, our mix of hot summers and freezing winters can take a toll. If you’re putting on a lot of miles in stop-and-go traffic, towing, or running work trucks, it makes sense to check the coolant condition sooner.

What a Coolant Flush Does

  • Removes old coolant and rust particles
  • Clears out scale and deposits that collect inside the radiator and heater core
  • Refills the system with fresh Mopar-approved coolant
  • Restores proper freeze and boil-over protection for Illinois weather

This service keeps the system clean and helps prevent overheating or internal corrosion.

A Word About Coolant Additives

You may see “quick fix” coolant additives on the shelf at auto parts stores. We strongly recommend you avoid them. These products often promise leak sealing or better performance, but in reality they can:

  • Clog small coolant passages inside the engine block
  • Reduce coolant flow through the heater core or radiator
  • Create buildup that leads to overheating and expensive repairs

The best protection for your engine is fresh Mopar coolant and a proper flush service, not chemical shortcuts.

Signs It’s Time for a Flush

  • Coolant looks rusty, brown, or has floating particles
  • The coolant reservoir has sludge or buildup
  • Overheating in traffic even though the coolant level is correct
  • Heater performance is weak in the winter

What a Coolant Flush Does Not Do

A flush is preventative maintenance, not a repair. A flush won’t fix:

  • Leaking hoses or radiator tanks
  • Water pump or thermostat failures
  • Cracked radiators or engine components

Keep Your Engine Protected

Fresh coolant helps your car or truck handle Illinois weather year-round. Our technicians at River Front Chrysler Jeep Dodge Ram in North Aurora use factory-approved equipment and Mopar coolant to keep your system running right.

Ready to schedule? Call 630-907-1700 or book your coolant service online today.

Our Locations

River Front CDJR

Sales

630-538-7691
Monday: 9:00 am - 9:00 pm
Tuesday: 9:00 am - 9:00 pm
Wednesday: 9:00 am - 9:00 pm
Thursday: 9:00 am - 9:00 pm
Friday: 9:00 am - 9:00 pm
Saturday: 9:00 am - 5:00 pm
Sunday: Closed

Service

331-258-1802
Monday: 7:00 am - 6:00 pm
Tuesday: 7:00 am - 6:00 pm
Wednesday: 7:00 am - 6:00 pm
Thursday: 7:00 am - 6:00 pm
Friday: 7:00 am - 6:00 pm
Saturday: 7:00 am - 3:00 pm
Sunday: Closed

Parts

630-405-5687
Monday: 7:00 am - 6:00 pm
Tuesday: 7:00 am - 6:00 pm
Wednesday: 7:00 am - 6:00 pm
Thursday: 7:00 am - 6:00 pm
Friday: 7:00 am - 6:00 pm
Saturday: 7:00 am - 3:00 pm
Sunday: Closed

Ram Truck Center

Commercial Sales / Business Link

630-907-1700

Coolant Flush FAQ Near Aurora, IL

How often should I flush my coolant in Illinois?

Most newer Chrysler, Jeep, Dodge, and Ram vehicles need it every 10 years or 150,000 miles. Older vehicles or those with conventional coolant may need service every 3 to 5 years.

What counts as severe duty driving for coolant?

Stop-and-go traffic on Orchard Road, towing a trailer, idling in summer heat, or frequent short winter trips in Aurora and North Aurora all qualify as severe duty and may shorten the service interval.

Can I keep driving if my coolant is low?

Driving with low coolant risks overheating. Top it off if needed, but schedule service as soon as possible to prevent engine damage.

Should I use coolant additives?

No. Additives often cause more harm than good, including clogging coolant passages or blocking the heater core. The safest option is a proper flush with Mopar coolant.

Where can I get a coolant flush near Aurora, IL?

River Front Chrysler Jeep Dodge Ram in North Aurora offers coolant flush service with Mopar-approved coolant and factory-trained technicians.