The 2017 Jeep Wrangler is known for its rugged performance and reliability. But to keep it running strong, you need to pay attention to details like coolant type.
Using the correct coolant is not just a suggestion—it’s a must for engine health, efficiency, and avoiding expensive repairs. Many Jeep owners and DIY mechanics are surprised by how critical the right coolant is, and how easy it is to make a costly mistake.
If you’re wondering, “What coolant does a 2017 Jeep Wrangler use?” this guide will give you the clear, actionable answers you need.
The Right Coolant For A 2017 Jeep Wrangler
The 2017 Jeep Wrangler is designed to use OAT (Organic Additive Technology) coolant. Chrysler, Jeep’s parent company, specifies Mopar Antifreeze/Coolant 10 Year/150,000 Mile Formula OAT (part number 68163848AB or equivalent) for this model year.
This coolant is usually purple (sometimes pink) and is a long-life formula, designed to protect your engine and cooling system for up to 10 years or 150,000 miles. It’s important to stick to this OAT formula because mixing it with the wrong type can cause chemical reactions that damage your engine.
Key Facts About Oat Coolant
- Color: Purple or pink (always check the label)
- Service Life: Up to 10 years or 150,000 miles
- Chrysler Part #: 68163848AB (or 68163849AB for concentrate)
- Compatibility: Do not mix with HOAT (Hybrid Organic Additive Technology) or IAT (Inorganic Additive Technology) coolants
Why Using The Right Coolant Matters
Using the correct coolant is not just about following the manual. The OAT formula is specially engineered for aluminum radiators, engine blocks, and gaskets found in the 2017 Wrangler. Here’s why it matters:
- Corrosion Protection: OAT coolant prevents internal rust and buildup, which can block cooling passages.
- Long Life: The extended life reduces the need for frequent flushes, saving money and time.
- Proper Temperature Control: The right coolant keeps your engine at the ideal temperature, especially in extreme heat or cold.
- Warranty Compliance: Using the wrong coolant can void your powertrain warranty.
Many Jeep owners overlook the impact of coolant on their vehicle’s longevity. Even small amounts of the wrong type can reduce effectiveness and lead to leaks or overheating.
How To Check And Add Coolant
Before adding coolant, let the engine cool completely. Never open a hot radiator cap it can cause burns.
- Locate the coolant reservoir under the hood. It’s usually a translucent white plastic tank labeled “Engine Coolant.”
- Check coolant level between the “MIN” and “MAX” lines.
- If low, add Mopar OAT coolant. If using concentrate, mix 50/50 with distilled water.
- Never mix OAT with older green or orange coolants.
Signs Of Coolant Issues
- Low coolant warning light
- Overheating engine
- Visible leaks under the vehicle
- Coolant color looks rusty or brown
If you see these signs, get your cooling system checked don’t just top off the fluid.
Common Mistakes To Avoid
Many drivers make simple but costly errors when it comes to coolant:
- Mixing different coolant types. Even a small amount of older HOAT or IAT can reduce OAT’s effectiveness.
- Using tap water. Always mix with distilled water to prevent mineral buildup.
- Ignoring flush intervals. Even long-life coolant needs changing, especially if contaminated.
One non-obvious tip: if you’re unsure what’s in your system, it’s safer to do a full flush before adding the correct OAT coolant.
Comparison: Oat Vs. Other Coolants
Here’s a quick comparison of the main coolant types used in modern vehicles:
| Coolant Type | Color | Service Life | 2017 Wrangler Compatible? |
|---|---|---|---|
| OAT | Purple/Pink | 10 years/150,000 miles | Yes |
| HOAT | Orange/Yellow | 5 years/100,000 miles | No |
| IAT | Green | 2 years/30,000 miles | No |
How To Flush And Replace Coolant
For a full coolant replacement, follow these simplified steps:
- Let the engine cool. Safety first.
- Drain the old coolant using the radiator drain plug.
- Flush with distilled water to remove residue.
- Close the drain, then add new OAT coolant (mixed 50/50 with distilled water).
- Bleed the system to remove air pockets. Run the engine with the cap off and heater on max until bubbles stop.
- Check for leaks and top off as needed.
A common mistake is not bleeding the system. Air pockets can cause overheating even if the coolant level looks full.
Dealer Vs. Diy: Which Is Better?
Some owners prefer to let the dealer handle coolant service. Others do it themselves. Here’s a quick comparison:
| Option | Pros | Cons |
|---|---|---|
| Dealer Service | Expertise, warranty-safe, correct parts | More expensive, less flexible |
| DIY | Cheaper, flexible timing, learn about your Jeep | Risk of mistakes, messier |
If you’re new to car maintenance, watching a detailed video or checking the official Jeep maintenance guide can help.
Environmental Tips For Coolant Disposal
Never pour old coolant down the drain. It’s toxic and can harm pets and wildlife.
Take used coolant to a local recycling center or auto parts store that accepts hazardous fluids.
Frequently Asked Questions
What If I Accidentally Mixed Different Coolant Types?
If you mixed OAT with another type, flush the system as soon as possible. Mixing coolants can lead to sludge, corrosion, and cooling system failure.
How Often Should I Replace The Coolant In My 2017 Jeep Wrangler?
Replace coolant every 10 years or 150,000 miles, whichever comes first. If the system is contaminated or you see discoloration, flush and replace sooner.
Can I Use Universal Coolant Instead Of Mopar Oat?
It’s best to use Mopar OAT or an exact equivalent. Some “universal” coolants claim compatibility but may not meet Jeep’s standards.
Always check the label for OAT and Chrysler approval.
What Is The Coolant Capacity For A 2017 Jeep Wrangler?
The cooling system holds about 14 quarts (3.5 gallons). Always check your owner’s manual for exact numbers, as this can vary by engine.
What Color Should My Coolant Be?
For the 2017 Jeep Wrangler, coolant should be purple or pink. If it looks brown, rusty, or another color, it’s time to flush and replace it.
Choosing the right coolant for your 2017 Jeep Wrangler is simple but critical. Stick to OAT formula, follow proper procedures, and your Jeep’s engine will stay cool and protected for years to come.
