Looking to keep your 2020 Traverse running stronger for longer? It’s time for a closer look at the essential switch to synthetic engine oil. Forget old-school conventional oil—synthetic oil brings a host of advantages that can improve performance, cut costs, and even help the environment.
What’s Different About the 2020 Traverse Oil Type?
For years, many drivers relied on conventional motor oil for their vehicles. But for the 2020 Traverse, Chevrolet recommends 5W-30 full synthetic oil. This isn’t just a minor update in oil type—this move is all about enhanced efficiency and superior engine protection. Synthetic oil is designed with consistency and durability in mind, making it an ideal match for your Traverse’s high-performing engine.
Why Switch to Synthetic Oil?
The major draw is how synthetic oil outperforms conventional oil in just about every way that matters. Synthetic oil is created through a chemical process that produces uniform, pure molecules. This eliminates contaminants like sulfur and metals that are found in conventional oil, which is made from refined crude. These impurities in traditional oil hamper performance, especially under stress.
Here’s how they stack up:
- Synthetic Motor Oil: Engineered for consistent protection, better fuel economy, reduced friction, and peak performance in extreme conditions—whether it’s freezing cold or blazing hot.
- Conventional Oil: Comes with natural impurities that limit performance. Its molecules vary in size, leading to uneven lubrication and quicker degradation.
By choosing synthetic oil, you’re effectively giving your engine cleaner, stronger, and longer-lasting protection.
Comparing Synthetic Oils: Castrol vs. AMSOIL
Not all synthetic oils are created equal. Two popular options stand out: Castrol GTX High Mileage 5W-30 Synthetic Blend Oil and AMSOIL Signature Series 5W-30 100% Synthetic Motor Oil. Let’s break them down:
- Castrol GTX High Mileage: This is a solid budget-friendly option. Designed as a synthetic blend, it combines some synthetic properties with traditional oil. It’s better than what you’d get from conventional oil but doesn’t quite deliver the same high-level performance. Great for older engines, but don’t expect longer oil-change intervals.
- AMSOIL Signature Series 5W-30: AMSOIL is a premium option offering full synthetic oil, making it a standout for top-tier performance. It boasts better protection against wear and lasts up to 25,000 miles between oil changes—perfect if reliability and reduced maintenance are priorities for you.
While Castrol is good for those watching their wallet, AMSOIL provides unmatched durability and performance for anyone serious about engine care.

Benefits of Switching to Synthetic Oil
Long-Lasting Engine Protection
Synthetic oil forms a tougher, more reliable barrier between moving parts, reducing wear and keeping your engine running like new. For your 2020 Traverse, this protection prolongs the life of crucial engine components, keeping costly repairs at bay.
Extended Oil Change Intervals
Stop wasting time and money on frequent oil changes. With synthetic oils like AMSOIL, you could go as long as 25,000 miles between changes, depending on your driving habits. Compare that to conventional oil, which may require a change every 3,000 to 5,000 miles. That difference translates into major time and money savings.
Improved Fuel Efficiency
With less friction and better lubrication, synthetic oil helps your engine run more efficiently, which means better mileage. You’ll save at the pump without compromising performance.
Environmental Impact
One underrated perk of synthetic oil is its lower environmental footprint. By extending oil change intervals and reducing the need for frequent replacements, you’re generating less waste. Combine that with synthetic oil’s lower consumption rate, and you’ve got a win for both your engine and the planet.
How to Choose the Right Oil for Your 2020 Traverse
When deciding on synthetic oil, always follow the manufacturer’s recommendations. Chevrolet advises 5W-30 full synthetic oil for the 2020 Traverse’s 3.6L V6 engine. For the best results, stick to the specifics outlined in your owner’s manual.
Looking to make the right pick? If you want excellent protection and long intervals between oil changes, AMSOIL Signature Series 5W-30 is hard to beat. If you need something more economical, consider Castrol GTX High Mileage as a step up from conventional oils without the full synthetic price tag.
Learn more about the 2020 Chevy Traverse’s features and performance details in this Car & Driver review here.

Why Your Choice of Oil Matters
Your 2020 Traverse is an investment, and maintaining it correctly ensures it delivers dependable performance for years. Choosing synthetic oil isn’t just a maintenance decision—it’s a commitment to keeping your engine running smoother, cleaner, and longer. Switching from conventional oil to synthetic isn’t just a trend; it’s a smarter way to care for your vehicle. Improved performance, cost savings, and environmental benefits are just the beginning. Give your Traverse what it deserves and see the difference synthetic oil makes firsthand. For more details on high-performance motor oils, explore: Castrol Here and AMSOIL Here.