Keeping your 2017 Mazda 6 running smoothly for years to come boils down to a few simple but critical maintenance habits, and at the top of that list is using the correct oil. It’s the lifeblood of your car’s engine, reducing friction, managing temperature, and keeping internal components clean. Getting this simple detail wrong can lead to reduced performance, lower fuel economy, and even long-term engine damage.
That’s why knowing the precise 2017 Mazda 6 Oil Type and Capacity is so important for any owner. Whether you’re a seasoned DIY enthusiast or just someone who likes to be informed when talking to a mechanic, having this knowledge empowers you to make the best decisions for your vehicle. Let’s walk through everything you need to know to keep your Mazda’s SkyActiv engine purring.
What Oil Should You Put in Your 2017 Mazda 6?
For the 2017 Mazda 6, the recommended oil type is SAE 0W-20. This is a full synthetic oil, and Mazda strongly recommends using it for all driving conditions. You’ll find this specification clearly stated in your owner’s manual and on the oil cap under the hood.
But what does “0W-20” actually mean? The first number, “0W,” refers to the oil’s viscosity (or thickness) in cold weather (the “W” stands for winter). A 0W oil is very thin when cold, allowing it to flow quickly through the engine during startup, which is when a significant amount of wear occurs. The second number, “20,” refers to the oil’s viscosity at the engine’s normal operating temperature. This thinner viscosity at high temperatures helps reduce friction, which directly contributes to the excellent fuel efficiency that the SkyActiv engine is known for.
Using a full synthetic 0W-20 oil is not just a suggestion; it’s engineered for your engine’s specific tolerances. While you might see other viscosities on the shelf, sticking with 0W-20 ensures optimal performance, protection, and fuel economy.
Getting the Quantity Right: 2017 Mazda 6 Oil Capacity
Putting in the right type of oil is one thing, but using the correct amount is equally vital. An overfilled or underfilled engine can cause serious problems. For the 2017 Mazda 6, the oil capacity varies slightly depending on your engine.
The standard 2.5L SkyActiv-G engine has an oil capacity of 4.8 US quarts (4.5 liters) when you’re performing a standard oil and filter change. It’s always a good practice to buy five quarts, as you’ll use almost all of them and it’s helpful to have a little left over to top off if needed between changes.
If you have the more powerful 2.5L Turbocharged engine (available in later trims), note that its capacity might be slightly different. Always double-check your owner’s manual for the most accurate information for your specific vehicle. Remember, this capacity is for a dry filter change. If you’re just topping up your oil, you’ll obviously need much less.
Why Sticking with the Recommended Oil Matters
You might wonder if you can use a different viscosity, like 5W-20 or 5W-30, especially if you find a great deal. While your engine might run, it’s not the best choice for long-term health. The SkyActiv engine has very tight internal clearances designed for thinner oil. Using a thicker oil can increase engine drag, forcing it to work harder. This results in reduced fuel efficiency and, over time, can lead to increased carbon buildup and wear.
Sticking with 0W-20 full synthetic oil ensures that all the moving parts are protected with a robust film that can handle high temperatures and pressures. It also does a better job of resisting sludge formation, keeping your engine’s interior remarkably clean. Think of it as using the exact fuel prescribed for a high-performance machine—it’s designed to work in harmony with your Mazda’s engineering.
A Simple Guide to Checking Your Oil Level
Even if you’re not planning to change the oil yourself, knowing how to check the level is an essential skill for every driver. It’s a simple process that can alert you to potential problems like leaks or excessive oil consumption before they become major issues.
To get an accurate reading, make sure your car is parked on a level surface and the engine has been off for at least five to ten minutes, allowing all the oil to drain back into the pan. Pull the dipstick, wipe it clean with a lint-free rag, fully reinsert it, and then pull it out again to check. You’ll see two marks—the oil level should be between the minimum and maximum lines. If it’s near or below the minimum, it’s time to add a quart of the recommended 0W-20 oil.
Choosing the Best Oil Filter for Your Mazda
An oil change isn’t complete without a new oil filter. The filter’s job is to trap contaminants and metal particles that can circulate through your engine and cause damage. Always replace the filter with every oil change. While there are many good brands available, look for a high-quality filter that is designed specifically for your model.
A premium filter will have a strong anti-drainback valve to prevent oil from draining out of the filter when the engine is off, ensuring immediate oil pressure on startup. It will also have efficient filtering media to capture the smallest of particles. Pairing a full synthetic oil with a high-quality filter is the best recipe for engine longevity.
Final Thoughts on Keeping Your Engine Healthy
Staying on top of your Mazda 6’s oil needs is one of the simplest and most effective ways to protect your investment. By using the correct 0W-20 full synthetic oil, maintaining the proper capacity of 4.8 quarts, and changing it along with the filter at the recommended intervals, you are providing the foundation for a long and reliable engine life. Always consult your owner’s manual for the most precise information tailored to your driving conditions, and don’t hesitate to ask a trusted professional if you have any doubts. Your Mazda will thank you with many more miles of smooth, efficient driving.