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DIY Oil Change & Resetting Maintenance Light on my Wrangler JL

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Chris P. · rep 0 · May 22, 3:27 AM · 1 replies · solved · Question

Vehicle: 2020 Jeep Wrangler Unlimited Sahara

Hey everyone, I'm looking to do my first oil change on my 2020 Jeep Wrangler Unlimited Sahara with the 3.6L Pentastar engine. I'm pretty handy and want to save some money.

What kind of oil should I be using? I've seen different recommendations online, and I want to make sure I get the right stuff. Also, once I'm done, how do I reset the oil change reminder light on the dash? Any specific steps or tricks I should know?

Any tips or common pitfalls for a first-timer would be greatly appreciated!

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 22, 3:27 AM

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Hi Chris,

Great initiative taking on your own oil change! It's a fundamental maintenance task that can save you money and help you get to know your Jeep better.

Here's a breakdown for your 2020 Jeep Wrangler Unlimited Sahara with the 3.6L Pentastar:

  1. Recommended Oil: For the 3.6L Pentastar engine, Jeep recommends using SAE 0W-20 full synthetic motor oil. Always check your owner's manual for the most accurate and up-to-date specification, but 0W-20 is standard. You'll typically need about 6 quarts for a complete oil and filter change.
  2. Oil Filter: Use a high-quality oil filter designed for your specific engine. Many prefer Mopar filters, but reputable aftermarket brands like Wix or Mann are also excellent choices.
  3. Resetting the Oil Change Light:
    • Turn the ignition to the 'ON' position (without starting the engine).
    • Fully depress the accelerator pedal slowly three times within 10 seconds.
    • Turn the ignition to the 'OFF' position.
    • Start the engine to verify the indicator has been reset. If it hasn't, repeat the steps.

Common Pitfalls/Tips:

  • Drain Plug Torque: Don't overtighten the drain plug. Refer to your owner's manual or a service manual for the correct torque specification (usually around 20 ft-lbs for the 3.6L). Overtightening can strip the oil pan threads.
  • New Gasket: Always replace the drain plug gasket/crush washer with a new one to prevent leaks.
  • Filter Housing: The 3.6L uses a cartridge-style filter located on top of the engine. Be careful not to overtighten the filter housing cap, as it can crack.

When to See a Shop: If you encounter any unexpected leaks after the change, or if the oil pressure warning light comes on and stays on after starting the engine, it's best to have a professional technician inspect it immediately.

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