Mazda CX-9 Oil Type and Capacity

Suppose you recently bought a brand-new Mazda CX-9 worth $ 40,000, which got damaged. Its engine overheated, burnt, and eventually failed. The mechanic diagnosed and told you that you had used the wrong oil in your vehicle, which caused the engine to be damaged. What would you do in that case? You can’t do anything than replace the whole engine, which can cost you anywhere from $ 4000 to $ 5000.

It means your one mistake can put you in severe difficulty. You can lose your hard-earned vehicle because after replacing the engine, there will be no guarantee of how well it will perform and how long it will run. Moreover, you will have to spend much on repairs. Your extremely expensive car could cost you $50,000 or even more in total. Want to prevent such loss in the first place? If so, keep reading. This blog post will discuss the recommended oil type and capacity for all generations of Mazda CX-9.

What Is The Recommended Oil Type For Mazda CX-9 Owners?

Mazda Cx-9 is a mid-size crossover SUV. It has two generations so far. The oil type and capacity vary for each generation model year. The recommended oil type and capacity differ between ages of Mazda CX- due to advancements and differences in engine displacement, engine construction, and engine design. Generally, all models of Mazda CX-9 recommend an API high engine oil with viscosity grade SAE 5W-30. However, there are also certain exceptions to this rule. The following table lists the recommended oil capacities for every generation of Mazda CX-9:

Mazda CX-9 Oil Type

Model YearRecommended Oil Type
Second Generation
2023Only Synthetics 5W-50, 10W-60 ALL TEMPS
2022Only Synthetics 5W-50, 10W-50 ALL TEMPS
2021Only Synthetics 10W-50, 15W-40, 15W-50 ALL TEMPS
2020Only Synthetics 10w-50, 15w-40, 15w-50 All Temps
2019Only Synthetics 10W-50, 15W-40, 5W-40
2018Synthetics, Semi synthetics 10W-40, 10W-50, 15W-40, 5W-40 ALL TEMPS
2017Synthetics, Semi synthetics 10W-40, 15W-40, 5W-40 ALL TEMPS
2016Synthetics, Semi synthetics 10W-40, 15W-40, 5W-40 ALL TEMPS
First Generation
2015Semi synthetics 5W-40, 15W-40 ALL TEMPS  
2014Semi synthetics 5W-40, 10W-40, 15W-40 ALL TEMPS
2013Semi synthetics 10W-40, 15W-40, 5W-40 ALL TEMPS
2012Semi synthetics 10W-40, 15W-40, 5W-40 ALL TEMPS
2011Semi synthetics 10W-40, 5W-40 ALL TEMPS
2010Semi synthetics 10W-40, 5W-40 ALL TEMPS
2009Semi synthetics, Mineral 15W-40, 10W-40, 5W-40 ALL TEMPS
2008Semi synthetics, Mineral 10W-40, 5W-40 ALL TEMPS
2007Semi synthetics, Mineral 10W-30, 10W-40, 15W-40, 15W-30 ALL TEMPS

How Much Oil Does A Mazda CX-9 Hold?

The Oil Capacity of Mazda CX-9

Model YearEngine TypeRecommended Oil Capacity
Second Generation
2023Skyactiv-G 2.5tawd   Skyactiv-G 2.5t5.9 Liter (Dry Fill) & 4.8 Liter (Service Fill) 5.9 Liter (Dry Fill) & 4.8 Liter (Service Fill)
20222.5-Liter Turbocharged Skyactiv-G 2.5 Four-Cylinder Engine 5.1 Quarts Or 4.83 Liters (With Filter) & 4.9 US Quartz Or 4.6 Liters (Without Filter)
20212.5l Inline-4 Engine 5.1 Quarts Or 4.83 Liters (With Filter)
20202.5-Liter 4-Cylinder Turbocharged Skyactiv-G Engine 5.1 Quarts Or 4.83 Liters (With Filter)
2019Turbocharged 2.5l I-4 Engine 5.1 Quarts Or 4.83 Liters (With Filter)
2018Turbocharged 2.5-Liter Four-Cylinder Engine 5.1 Quarts Or 4.83 Liters (With Filter)
20172.5t L4 Skyactiv-G DOHC 16-Valve Engine 5.1 Quarts Or 4.83 Liters (With Filter)
2016Turbocharged Four-Cylinder Engine 5.1 Quarts Or 4.83 Liters (With Filter)
First Generation
2015V6 DOHC 24-Valve Engine5.5 Quarts Or 5.2 Liters
2014V6 DOHC 24-Valve Engine5.5 Quarts Or 5.2 Liters
2013V6 DOHC 24-Valve Engine5.5 Quarts Or 5.2 Liters
2012V6 DOHC 24-Valve Engine5.5 Quarts Or 5.2 Liters
2011V6 DOHC 24-Valve Engine5.5 Quarts
2010V6 DOHC 24-Valve Engine5 US Quarts
2009V6 DOHC 24-Valve Engine5.5 Quarts (With Filter)
2008V6 DOHC 24-Valve Engine5.5 Quarts (With Filter)
2007V6 DOHC 24-Valve Engine5.5 Quarts (With Filter)


Why Is It Crucial To Use The Right Oil Type In Your Mazda CX-9?

The oil in your Mazda CX-9 is essential for the proper functioning of its engine. Using the wrong type or incorrect amount of oil can cause serious damage to your engine. It can lead to reduced performance, increased fuel consumption, and even catastrophic engine failure.

How often does Mazda CX-9 need an oil change?

For all generations of Mazda CX-9, the manufacturer recommends an oil change every six months or 7,500 miles (12,000 km), whichever comes first. Synthetic oil may extend this interval to 10,000 miles (16,000 km) under normal conditions. However, if you drive in extremely hot or cold climates or frequently tow heavy loads, it’s best to adhere to the 6-month/7,500-mile (12,000 km) interval.

Can I use 5w30 instead of 5w20 engine oil in my Mazda?

Yes, you can use 5w30 oil in your Mazda CX-9. But you must be aware that it may not provide the same level of performance as the 5w20 oil specified by the manufacturer. Using 5w30 oil instead of 5w20 can result in lower fuel economy, increased wear and tear, and higher oil consumption levels. It could affect the engine performance.

It is because 5w30 has a higher viscosity than 5w20, meaning it is thicker and takes longer to flow through the engine. Its increased thickness results in a slower warm-up time, making it harder for the engine to reach its optimal operating temperature quickly.

It is also important to note that using 5w30 oil in place of 5w20 could void any warranty you may have on your vehicle. Therefore, we recommend you always use the oil type specified by the manufacturer for optimal performance.

Is 0W-30 good for Mazda Cx-9 in hot weather?

For hot weather driving, 0W-30 is a great oil choice for the Mazda CX-9. The 0W rating helps it flow quickly to critical engine parts in cold starts, and its higher viscosity means it won’t break down quickly in warmer temperatures. 0W-30 is a synthetic oil that can withstand high temperatures for longer than conventional oils. However, it’s important to remember that 0W-30 is not recommended for all Mazda CX-9s. Additionally, it is not suitable for heavy-duty driving in extremely hot temperatures.

Final Thoughts

Now you may know which and how much oil is best for your Mazda CX-9. Whether you have a new model or an old Mazda, it is important to know the recommended oil type and capacity for each generation of the CX-9. Understanding this information will ensure that your CX-9 is kept in optimal condition and runs smoothly.

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