Finding the right amount of oil for your 2018 Jeep Grand Cherokee is more than just a routine task. Using too much or too little oil can damage your engine and cost you money.
Many owners are unsure about oil capacity and which oil type fits their specific model. This guide will help you learn exactly how much oil your 2018 Grand Cherokee needs, which oil to choose, and how to avoid common mistakes.
With clear steps, helpful tables, and practical tips, you’ll feel confident about your next oil change.
Oil Capacity For The 2018 Jeep Grand Cherokee
The 2018 Jeep Grand Cherokee comes with several engine options. Each engine has a different oil capacity. Choosing the right amount is crucial for performance and protection. Here’s a breakdown:
| Engine Type | Oil Capacity (with filter) | Recommended Oil |
|---|---|---|
| 3.6L V6 | 5.9 quarts | 5W-20 |
| 5.7L V8 | 7.0 quarts | 5W-20 |
| 6.2L V8 SRT | 8.5 quarts | 0W-40 |
| 6.4L V8 | 7.0 quarts | 0W-40 |
| 3.0L Diesel V6 | 8.4 quarts | 5W-40 |
Many drivers only check the oil capacity for their exact engine. But, it’s important to include the oil filter when measuring.
If you skip the filter, your oil level will be too low.
Choosing The Right Oil Type
Not all oils are the same. The oil type affects engine life, fuel efficiency, and performance.
- Synthetic oil is recommended for all engines. It lasts longer and protects better.
- 5W-20 is the standard for most V6 and V8 models. If you have an SRT or Trackhawk, use 0W-40.
- Diesel engines use 5W-40. This oil is made for high temperatures and heavy loads.
Check your owner’s manual before changing oil. Some engines can use two types, but one is always preferred.
Using the wrong oil can void your warranty.
How To Change Oil In A 2018 Jeep Grand Cherokee
Changing oil is simple if you follow the steps. Here is a basic guide:
- Warm up the engine for a few minutes. This helps old oil drain faster.
- Turn off the car and wait 5 minutes.
- Open the hood and remove the oil cap.
- Place a drain pan under the engine. Remove the oil drain plug.
- Let oil drain completely. This takes about 10 minutes.
- Replace the drain plug and install a new oil filter.
- Pour new oil into the engine. Use the recommended amount for your model.
- Start the engine and let it run for 1 minute. Check for leaks.
- Check the oil level with the dipstick. Add more oil if needed.
If you’re not comfortable changing oil, consider visiting a professional. A shop will also check for leaks and reset your oil change light.
Comparing Oil Brands And Prices
There are many oil brands to choose from. Some are more expensive, but not always better. Here’s a quick comparison of popular oils for the Grand Cherokee:
| Brand | Type | Price (per quart) | Quality |
|---|---|---|---|
| Mobil 1 | Synthetic | $8 | Excellent |
| Valvoline | Synthetic | $7 | Very Good |
| Pennzoil | Synthetic | $7 | Very Good |
| Castrol | Synthetic | $8 | Excellent |
| Shell Rotella (Diesel) | Synthetic | $9 | Excellent |
High-quality oil is worth the price. It can prevent engine wear and help your Grand Cherokee last longer.
Practical Tips For Oil Changes
Many owners make mistakes during oil changes. Here are some tips:
- Always change the oil filter with the oil.
- Use a funnel to avoid spills.
- Record the mileage after each oil change.
- Don’t overfill. Too much oil can damage seals and cause leaks.
- Check for leaks after changing oil.
A common mistake is forgetting to replace the oil drain plug tightly. If it’s loose, oil can leak and cause engine damage.
Oil Change Intervals And Maintenance
Changing oil at the right time keeps your Jeep running smoothly. For most engines, change oil every 5,000–7,500 miles. If you drive in dusty or hot conditions, change oil sooner.
Your Jeep may show an oil change light. Don’t ignore it. Delaying oil changes can cause engine problems.
Here’s a quick look at oil change intervals:
| Driving Condition | Interval (miles) |
|---|---|
| Normal | 7,500 |
| Heavy use (towing, dusty) | 5,000 |
| City driving | 6,000 |
If you’re unsure, check the maintenance schedule in your Jeep’s manual or ask your dealer. You can find more details on the Jeep Official Site.
Frequently Asked Questions
How Much Oil Does The 2018 Jeep Grand Cherokee Need?
It depends on your engine. The 3.6L V6 needs 5.9 quarts, 5.7L V8 and 6.4L V8 need 7.0 quarts, 6.2L V8 SRT needs 8.5 quarts, and the 3.0L Diesel needs 8.4 quarts.
What Oil Type Is Best For My Jeep Grand Cherokee?
Most models use 5W-20 synthetic oil. SRT and Trackhawk use 0W-40. Diesel models need 5W-40.
How Often Should I Change The Oil In My Jeep Grand Cherokee?
Change oil every 5,000–7,500 miles for most engines. Heavy use or harsh conditions require more frequent changes.
Can I Use Regular Oil Instead Of Synthetic?
Synthetic oil is strongly recommended. It offers better protection and lasts longer. Using regular oil can void your warranty.
What Happens If I Put Too Much Oil In My Jeep Grand Cherokee?
Too much oil can cause leaks, damage seals, and affect engine performance. Always check the dipstick after filling.
Keeping your 2018 Jeep Grand Cherokee well-maintained is simple with the right oil and regular changes. Use the correct oil type and quantity for your engine, follow the recommended intervals, and pay attention to signs from your vehicle. With good care, your Jeep will stay reliable for years.
