The 2020 Jeep Gladiator is a unique pickup truck that blends the legendary off-road ability of the Jeep Wrangler with the utility of a truck bed. If you own one, or plan to, you might be wondering: what oil does a 2020 Jeep Gladiator take?
Choosing the right oil is essential for engine health, performance, and warranty protection. This guide will explain oil types, specifications, and provide practical tips for keeping your Gladiator running smoothly.
Understanding The 2020 Jeep Gladiator Engine Options
The 2020 Jeep Gladiator comes with one main engine in the US:

- 3.6L Pentastar V6 (gasoline)
This engine is known for reliability and versatility, but using the correct oil is key for longevity.
Recommended Oil Type For The 2020 Jeep Gladiator
Jeep’s official recommendation for the 2020 Gladiator with the 3.6L Pentastar V6 is:
- SAE 0W-20 full synthetic oil
This oil is designed for modern engines and performs well in a wide range of temperatures.
Why 0w-20 Full Synthetic?
- Cold start protection: 0W-20 flows quickly even in freezing weather.
- Fuel efficiency: Thinner oils reduce friction, improving MPG.
- Engine cleanliness: Full synthetics resist sludge and deposits better than conventional oils.
You might see other oils in stores, but sticking to the recommended 0W-20 full synthetic ensures your engine gets the right protection.
Oil Capacity And Change Intervals
Knowing how much oil your Gladiator needs, and when to change it, is just as important as the type.
- Oil capacity (with filter): 5.0 quarts (4.7 liters)
- Recommended change interval: Every 7,500 miles or 12 months (whichever comes first) under normal driving
If you drive in severe conditions (heavy towing, dusty areas, frequent short trips), consider changing oil every 5,000 miles.
Comparing Oil Brands For The Gladiator
Not all oils are the same. Here’s a quick comparison of popular brands that meet Jeep’s specs:
| Brand | Meets MS-6395? | Typical Price (5 qt) | Common Features |
|---|---|---|---|
| Pennzoil Platinum | Yes | $25–$30 | Strong cleaning, Jeep’s factory fill |
| Mobil 1 | Yes | $27–$35 | Widely available, excellent performance |
| Valvoline Advanced | Yes | $25–$32 | Great for high-mileage engines |
The most important factor is the MS-6395 certification. This means the oil meets FCA (Jeep’s parent company) requirements.
How To Check And Change Oil In Your Gladiator
Changing your own oil can save money and help you understand your truck better.
Steps To Check Oil Level
- Park on a level surface and turn off the engine.
- Wait 5 minutes for oil to drain to the pan.
- Pull the dipstick, wipe clean, reinsert, and pull out again.
- Oil should be between the “Min” and “Max” marks.
Steps To Change Oil
- Gather supplies: 0W-20 full synthetic oil, new oil filter, socket/wrench, drain pan, gloves.
- Warm up the engine for a few minutes.
- Remove the oil drain plug and let old oil drain.
- Replace the drain plug and oil filter.
- Pour in 5.0 quarts of new oil.
- Start engine and check for leaks. Recheck oil level.
Tip: Always use a new oil filter with each change.
Oil Filter Options
Choosing a good oil filter is as important as the oil itself. Here are some options:
| Brand | Model # | Average Price | Notable Features |
|---|---|---|---|
| Mopar | MO-339 | $8–$13 | OEM filter, best fit |
| Wix | 57060XP | $12–$16 | High-efficiency, synthetic media |
| Fram | Ultra XG10060 | $10–$14 | Extended protection |

Mistakes To Avoid When Choosing Oil
Many Gladiator owners make simple errors that can cost money or damage the engine.
- Using the wrong viscosity: 5W-30 or 10W-30 are not approved for the 3.6L Pentastar.
- Skipping MS-6395 spec: Not all 0W-20 oils are certified for Chrysler engines.
- Mixing oil types: Avoid mixing synthetic and conventional oils.
- Delaying oil changes: Waiting too long can cause sludge and reduce engine life.
Special Considerations: Towing And Extreme Conditions
If you tow heavy loads or drive in dusty environments, your oil works harder. In these cases:
- Check oil level more often.
- Change oil sooner (every 5,000 miles).
- Use a high-quality oil filter.
Overlooking these steps can lead to engine wear or overheating.

Real-world Example
A common example: A Gladiator owner in Texas tows a camper in hot weather. They switched from a cheaper, non-synthetic oil to a certified 0W-20 full synthetic and saw lower engine temps and better fuel economy. This shows how important correct oil choice can be in real conditions.
Where To Find More Information
For more details, always check your Jeep owner’s manual. If you want official specs, the Jeep Official Website has downloadable manuals and guides.

Frequently Asked Questions
What If I Accidentally Use 5w-20 Instead Of 0w-20 In My Gladiator?
Using 5W-20 once is unlikely to cause immediate harm, but it’s best to return to 0W-20 at the next oil change. Consistent use of the wrong viscosity can hurt fuel economy and engine protection.
Can I Use Synthetic Blend Oil Instead Of Full Synthetic?
Jeep recommends full synthetic 0W-20 for the 2020 Gladiator. Synthetic blends may not offer the same level of protection, especially in extreme temperatures.
How Do I Know If An Oil Meets Ms-6395?
Look for “FCA MS-6395” on the oil container label. This means the oil is approved for your engine.
If in doubt, check the manufacturer’s website for certification info.
Do I Need To Change My Oil More Often If I Drive Off-road?
Yes. Frequent off-road driving, towing, or extreme heat can make the oil break down faster.
Change your oil every 5,000 miles in these conditions.
Is It Okay To Use Aftermarket Oil Filters?
High-quality aftermarket filters that meet or exceed OEM standards are safe. Stick to trusted brands like Wix, Fram, or the OEM Mopar filter for best results.
Taking care of your 2020 Jeep Gladiator starts with using the right oil. Following these tips will help you enjoy years of reliable service from your truck.






















