Should You Use Synthetic or Regular Oil for Your Kia? Find Out Here!
Are you a proud Kia owner wondering about the best oil for your vehicle? You’re not alone! The debate between synthetic and regular oil has been raging for years, and it’s time to settle the score once and for all. In this comprehensive guide, we’ll dive deep into the world of motor oils and help you make the best choice for your beloved Kia.

The Great Oil Debate: Synthetic vs. Regular
When it comes to keeping your Kia running smoothly, choosing the right oil is crucial. Let’s break down the key differences between synthetic and regular oil to help you make an informed decision.
What is Synthetic Oil?
Synthetic oil is a man-made lubricant created in a laboratory using carefully selected chemical compounds. It’s designed to provide superior performance and protection for modern engines.
What is Regular Oil?
Regular oil, also known as conventional oil, is derived from crude oil extracted from the ground. It’s been the go-to choice for many years but has some limitations compared to its synthetic counterpart.
The Showdown: Synthetic vs. Regular Oil
Let’s compare these two types of oil across various factors:
Factor | Synthetic Oil | Regular Oil |
Performance | Superior engine protection | Adequate for basic needs |
Longevity | Lasts longer between changes | Requires more frequent changes |
Temperature Resistance | Performs well in extreme temperatures | May break down in extreme conditions |
Cost | Higher upfront cost | Lower initial price |
Engine Cleanliness | Keeps engine cleaner | May leave more deposits |
Fuel Efficiency | Can improve fuel economy | Standard fuel efficiency |
As you can see, synthetic oil comes out on top in most categories. But does that mean it’s always the best choice for your Kia? Let’s dig deeper.
Book a Service Appointment at Kia 417! Genuine Kia Parts Deals at Kia 417!Why Kia Recommends Synthetic Oil
Kia has been making waves in the automotive industry with their commitment to quality and innovation. It’s no surprise that they’ve taken a strong stance on the oil debate. As of April 2021, Kia requires all vehicles manufactured after this date to use full synthetic oil to maintain warranty coverage.

The Kia Synthetic Oil Requirement
Here’s what you need to know about Kia’s synthetic oil policy:
- All Kia vehicles manufactured after April 2021 must use full-synthetic oil
- After June 2022, any vehicle still under factory warranty needs full-synthetic oil
- Using conventional or semi-synthetic oil can void your warranty
This policy shift isn’t just a marketing gimmick – it’s based on solid evidence of synthetic oil’s superior performance.
The Benefits of Synthetic Oil for Your Kia
Switching to synthetic oil can provide numerous advantages for your Kia:
- Extended Engine Life: Synthetic oil’s superior protection can help your Kia’s engine last longer.
- Better Cold-Weather Performance: Synthetic oil flows more easily in cold temperatures, reducing engine wear during those chilly winter starts.
- Improved Fuel Economy: The smoother operation provided by synthetic oil can lead to better fuel efficiency.
- Longer Intervals Between Oil Changes: With synthetic oil, you can go longer between oil changes, saving you time and money in the long run.
- Enhanced Engine Cleanliness: Synthetic oil is less likely to form sludge and deposits, keeping your Kia’s engine cleaner.
The Cost Factor: Is Synthetic Oil Worth It?
One of the main concerns Kia owners have about synthetic oil is the higher upfront cost. Let’s break down the numbers to see if it’s really more expensive in the long run.
Cost Comparison: Synthetic vs. Regular Oil Changes
Oil Type | Cost per Change | Changes per Year | Annual Cost |
Regular Oil | $39.99 | 4 | $159.96 |
Synthetic Oil | $89.95 | 2 | $179.90 |
While the per-change cost of synthetic oil is higher, you’ll need fewer changes throughout the year. Over a 3-year lease period, driving 12,000 miles per year:
- Regular Oil: 10 changes at $39.99 each = $399.90
- Synthetic Oil: 5 changes at $89.95 each = $449.75
The difference of $49.85 over three years is minimal when you consider the added benefits and potential savings in fuel efficiency and engine longevity.
Book a Service Appointment at Kia 417! Genuine Kia Parts Deals at Kia 417!How to Choose the Right Synthetic Oil for Your Kia
Not all synthetic oils are created equal. Here’s what to look for when selecting the best synthetic oil for your Kia:
- Viscosity: Check your Kia’s manual for the recommended viscosity grade.
- API Certification: Look for oils with the American Petroleum Institute (API) certification seal.
- Additives: Some synthetic oils contain special additives that can benefit your Kia’s engine.
- Brand Reputation: Stick to well-known brands with a history of quality products.
The Oil Change Process: What to Expect

Whether you’re a DIY enthusiast or prefer professional service, here’s what you need to know about changing your Kia’s oil:
DIY Oil Change Steps:
- Warm up the engine
- Drain the old oil
- Replace the oil filter
- Add new synthetic oil
- Check oil levels
- Dispose of old oil properly
Professional Oil Change:
When you take your Kia for a professional oil change, the technician will:
- Inspect your vehicle
- Drain the old oil
- Replace the oil filter
- Add new synthetic oil
- Check other fluids and components
- Reset the oil life monitor
Frequently Asked Questions About Kia Oil Changes
To help you make the most informed decision, let’s address some common questions Kia owners have about oil changes:
Q: How often should I change the oil in my Kia?
A: With synthetic oil, most Kia models can go 7,500 to 10,000 miles between oil changes. However, always consult your owner’s manual for specific recommendations.
Q: Can I switch from regular to synthetic oil in my older Kia?
A: Yes, you can switch to synthetic oil in most cases. However, if your Kia has high mileage, consult with a professional mechanic first.
Q: Will using synthetic oil void my Kia’s warranty?
A: No, using synthetic oil will not void your warranty. In fact, for newer Kia models, it’s required to maintain warranty coverage.
Q: Is synthetic oil better for the environment?
A: Yes, synthetic oil is generally more environmentally friendly because it lasts longer, reducing the amount of oil that needs to be produced and disposed of.
The Verdict: Synthetic Oil is the Clear Winner for Your Kia
After weighing all the factors, it’s clear that synthetic oil is the superior choice for your Kia. Not only does it provide better engine protection and performance, but it’s also required by Kia for newer models to maintain warranty coverage.
While the upfront cost may be higher, the long-term benefits of synthetic oil – including extended engine life, improved fuel efficiency, and longer intervals between changes – make it a smart investment in your Kia’s future.
Take Action: Schedule Your Synthetic Oil Change Today

Don’t wait to give your Kia the care it deserves. Schedule a synthetic oil change at your local Kia dealership or trusted service center today. Your Kia will thank you for years of smooth, reliable performance.
Remember, when it comes to your Kia’s health, choosing the right oil is just the beginning. Regular maintenance, including timely oil changes, is key to keeping your vehicle running at its best. So why settle for less when you can give your Kia the premium protection of synthetic oil?
Make the switch to synthetic oil and experience the difference for yourself. Your Kia – and your wallet – will thank you in the long run!
Book a Service Appointment at Kia 417! Genuine Kia Parts Deals at Kia 417!Frequently Asked Questions (FAQs)
- Q: Why does Kia recommend synthetic oil?
A: Kia recommends synthetic oil for superior engine protection, better performance in extreme temperatures, and longer intervals between oil changes. - Q: Is synthetic oil required for all Kia models?
A: Kia requires synthetic oil for all vehicles manufactured after April 2021 to maintain warranty coverage. - Q: How often should I change synthetic oil in my Kia?
A: Most Kia models can go 7,500 to 10,000 miles between synthetic oil changes, but always consult your owner’s manual for specific recommendations. - Q: Can I switch from conventional to synthetic oil in my older Kia?
A: Yes, you can switch to synthetic oil in most cases, but consult with a professional mechanic first if your Kia has high mileage. - Q: Will using synthetic oil void my Kia’s warranty?
A: No, using synthetic oil will not void your warranty. In fact, it’s required for newer Kia models to maintain warranty coverage. - Q: Is synthetic oil more expensive than conventional oil?
A: While synthetic oil has a higher upfront cost, it can be more cost-effective in the long run due to longer intervals between changes. - Q: What are the benefits of using synthetic oil in my Kia?
A: Benefits include better engine protection, improved fuel efficiency, superior performance in extreme temperatures, and longer oil life. - Q: How does synthetic oil improve fuel efficiency in Kia vehicles?
A: Synthetic oil reduces friction in the engine, allowing it to run more efficiently and potentially improving fuel economy. - Q: Can I mix synthetic and conventional oil in my Kia?
A: While it’s possible, it’s not recommended as it reduces the benefits of using full synthetic oil. - Q: Does synthetic oil really extend the life of my Kia’s engine?
A: Yes, synthetic oil provides better protection against engine wear, potentially extending the life of your Kia’s engine. - Q: How does synthetic oil perform in cold weather?
A: Synthetic oil flows more easily in cold temperatures, reducing engine wear during cold starts. - Q: Is synthetic oil better for high-mileage Kia vehicles?
A: Synthetic oil can be beneficial for high-mileage vehicles, but consult with a mechanic before switching. - Q: Does Kia’s warranty cover oil changes?
A: No, Kia’s warranty typically does not cover routine maintenance like oil changes. - Q: What type of synthetic oil does Kia recommend?
A: Kia recommends full synthetic oil that meets specific API certifications and viscosity grades. - Q: How do I know if my Kia needs an oil change?
A: Follow the recommended oil change intervals in your owner’s manual or watch for the oil change indicator on your dashboard. - Q: Can I use synthetic oil in my Kia if it’s not required?
A: Yes, you can use synthetic oil even if it’s not required, as it offers superior protection and performance. - Q: Does synthetic oil reduce engine noise in Kia vehicles?
A: Synthetic oil can help reduce engine noise by providing better lubrication and reducing friction. - Q: How does synthetic oil affect my Kia’s emissions?
A: Synthetic oil can help reduce emissions by keeping the engine cleaner and running more efficiently. - Q: Is synthetic oil more environmentally friendly?
A: Yes, synthetic oil is generally more environmentally friendly because it lasts longer, reducing the amount of oil that needs to be produced and disposed of. - Q: Can I go longer between oil changes with synthetic oil in my Kia?
A: Yes, synthetic oil typically allows for longer intervals between oil changes compared to conventional oil. - Q: How does synthetic oil protect my Kia’s engine in high temperatures?
A: Synthetic oil maintains its stability at higher temperatures, reducing the risk of thermal breakdown and engine wear. - Q: Does synthetic oil clean my Kia’s engine?
A: Synthetic oil contains detergents that help keep the engine cleaner by reducing sludge and deposit buildup. - Q: What happens if I don’t use synthetic oil in my newer Kia?
A: Using conventional oil in newer Kia models that require synthetic oil can void your warranty and potentially lead to engine damage. - Q: Can I switch back to conventional oil after using synthetic in my Kia?
A: While it’s possible, it’s not recommended as it may reduce the benefits you’ve gained from using synthetic oil. - Q: How does synthetic oil affect my Kia’s performance?
A: Synthetic oil can improve engine performance by reducing friction and providing better protection against wear. - Q: Is synthetic oil worth the extra cost for my Kia?
A: Yes, the long-term benefits of synthetic oil, including better engine protection and longer change intervals, often outweigh the higher upfront cost. - Q: How do I choose the right synthetic oil for my Kia?
A: Consult your owner’s manual for the recommended viscosity grade and API certification, and choose a reputable brand. - Q: Does synthetic oil prevent oil leaks in Kia engines?
A: While synthetic oil doesn’t prevent leaks, it’s less likely to cause leaks in engines that are in good condition. - Q: Can I use synthetic oil in my Kia’s first oil change?
A: Yes, you can use synthetic oil from the first oil change, and it’s often recommended for newer Kia models. - Q: How does synthetic oil affect my Kia’s resale value?
A: Using synthetic oil and maintaining proper oil change records can potentially increase your Kia’s resale value by demonstrating good maintenance practices.