Home › Help › Mazda CX-5 Oil Type

What Oil Does a Mazda CX-5 Take? Type, Weight, and Capacity

Almost every Mazda CX-5 from 2013 to today takes 0W-20 full synthetic. Here is the exact weight, quart capacity, and change interval for each engine, including the 2.5L turbo.

0W-20 Synthetic~4.5 Quarts7,500 mi IntervalAPI SP / GF-6

⚡ The Short Answer

0W-20 full synthetic, about 4.5 quarts, every 7,500 miles. What oil does a Mazda CX-5 take? Across every model year from 2013 to the present, every Skyactiv-G engine, 2.0L, 2.5L, and the 2.5L turbo, is spec'd for 0W-20 full synthetic meeting API SP and ILSAC GF-6 (older cars GF-5). The 2.5L engines hold roughly 4.5 quarts with a new filter, the 2.0L about 4.2 quarts. Change it every 7,500 miles or 12 months under normal use, sooner on the turbo.

That is the whole answer for 95% of CX-5 owners. The only real wrinkle is a permitted 5W-30 substitute on the 2.5L when 0W-20 simply is not on the shelf. Everything below breaks the numbers down by engine and year so you can match the oil to your exact VIN.

📋 Oil Spec by Engine and Year

The CX-5 has used three Skyactiv engines over its run. All three call for the same oil weight, but capacity differs. Find your engine in the table below.

EngineYearsOil WeightCapacity (w/ filter)Spec
2.0L Skyactiv-G2013–20170W-20~4.2 qt (4.0 L)API SN/SP, GF-5/GF-6
2.5L Skyactiv-G2013–present0W-20~4.5 qt (4.2–4.5 L)API SN/SP, GF-5/GF-6
2.5L Turbo (Skyactiv-G T)2019–present0W-20~4.5 qt (4.3 L)API SP, GF-6
2.2L Skyactiv-D (diesel, rare US)2019–20200W-30 (Mazda spec)~5.7 qt (5.4 L)ACEA C3 / Mazda diesel oil

Capacities are approximate. Drained volume always varies a bit, so fill to the middle of the dipstick hatch rather than dumping in an exact number. The diesel was a low-volume option and uses a different low-ash oil, so verify against your manual if you have one.

🧩 Why 0W-20 and Not a Thicker Oil

Skyactiv-G engines run unusually high compression for a gas motor, around 13:1, with tight bearing clearances and low-friction internals. Mazda engineered them around a thin 0W-20 film to hit their advertised fuel economy and to flow fast on cold starts. The "0W" is the cold rating (how easily it pumps at startup) and the "20" is the operating-temperature viscosity.

Going thicker, like 5W-30 or 10W-30, raises internal friction and can shave 1 to 2% off fuel economy. It will not blow the engine up, but it is not what the engine was tuned for. Mazda only lists 5W-30 as a stopgap on the 2.5L Skyactiv-G when 0W-20 is unavailable, and explicitly wants you back to 0W-20 at the next change. For the 2.0L and the turbo, stay on 0W-20.

Does it have to be full synthetic?

Yes. Mazda requires full synthetic. The combination of high compression, the turbo's heat on 2019+ models, and 7,500-mile intervals is more than conventional oil handles well. If you are chasing a low oil-pressure light or seeing burning-oil signs, our burning oil smell guide and the P0521 oil pressure sensor page walk through the usual culprits.

Not sure which engine your CX-5 has, or worried about oil burning or a check engine light? Get a ranked diagnosis for your exact year and trim.
Run AI Diagnosis →

⏱️ How Often to Change It

Mazda's published interval is 7,500 miles or 12 months, whichever comes first, on full synthetic 0W-20 under normal driving. Mazda also defines a "severe" schedule that cuts the interval roughly in half.

Driving TypeIntervalWhy
Normal (highway, mixed)7,500 mi / 12 moEngine reaches full temp, oil stays clean longer
Severe (short trips, towing, dust, heat)~5,000 mi / 6 moFuel dilution and contaminants build up faster
2.5L Turbo (any use)~5,000 miHigher heat and turbo bearings stress the oil

If most of your driving is short hops under 10 miles, you are on the severe schedule whether it feels like it or not. Many turbo owners voluntarily run 5,000-mile changes to protect the turbocharger, which is cheap insurance against a multi-hundred-dollar repair. A full synthetic oil change at a shop typically runs $70 to $110 on the CX-5; doing it yourself is closer to $35 to $45 in parts.

⚠️ Common Mistakes to Avoid

  • Using 5W-20 or 5W-30 by default. Quick-lube shops sometimes stock 5W-20 as a "close enough" oil. It is not the spec. Insist on 0W-20.
  • Overfilling past 4.5 quarts. The pour-in amount is not the dry-fill amount. Add about 4 quarts, run the engine, then top to the dipstick middle.
  • Skipping the filter. The CX-5 uses an OEM spin-on filter (commonly PE01-14-302A/B). Reusing an old filter dumps dirty oil straight back in.
  • Stretching the turbo to 7,500 miles. The turbo runs hotter; cooking the oil shortens turbo life.
  • Ignoring oil consumption. Some 2.5L engines sip a little oil between changes. Check the dipstick monthly. A sudden jump in consumption is worth a look; see our low oil pressure symptoms page.

🧮 Quick Decision Framework

Use this to pick the right oil in under a minute:

  1. What engine? 2.0L, 2.5L, or 2.5L turbo, they all take 0W-20 full synthetic. (Rare diesel uses 0W-30 low-ash.)
  2. How much? 2.0L ~4.2 qt, both 2.5L ~4.5 qt with a filter. Fill to the dipstick middle.
  3. What spec? API SP and ILSAC GF-6 on newer cars; GF-5 is fine on 2013–2017.
  4. How often? 7,500 mi normal, ~5,000 mi severe or turbo.
  5. Can't find 0W-20? Only the 2.5L Skyactiv-G allows a temporary 5W-30. Switch back next change.

If a shop quoted you a price for an oil change or related work and it feels high, run it through our repair quote checker before you pay.

❓ Frequently Asked Questions

What oil does a Mazda CX-5 take?
Nearly every Mazda CX-5 takes 0W-20 full synthetic oil. The 2.0L and 2.5L Skyactiv-G gas engines (2013 to present) are all spec'd for 0W-20. The only common exception is when 0W-20 is unavailable, where Mazda permits 5W-30 as a short-term substitute on the 2.5L. Capacity is about 4.5 quarts on the 2.5L and 4.2 quarts on the 2.0L with a filter change.
Can I use 5W-30 instead of 0W-20 in my CX-5?
Mazda's owner's manual lists 0W-20 as the required oil and allows 5W-30 only as a temporary substitute on the 2.5L Skyactiv-G if 0W-20 is not available. Running 5W-30 long term can slightly lower fuel economy and may not match the tolerances Skyactiv engines are designed around. For the 2.0L engine, stick to 0W-20. The 2.5L turbo also uses 0W-20.
How much oil does a Mazda CX-5 take?
With a filter change, the 2.5L Skyactiv-G and 2.5L turbo take about 4.5 quarts (4.2 to 4.5 L), and the 2.0L Skyactiv-G takes about 4.2 quarts (4.0 L). Always fill to the middle of the dipstick range rather than to a fixed number, since drained volume varies.
How often should I change the oil in a Mazda CX-5?
Mazda recommends every 7,500 miles or 12 months under normal driving with full synthetic 0W-20. Severe service such as short trips, towing, dusty roads, or extreme heat shortens that to roughly 5,000 miles. The 2.5L turbo runs hotter, so many owners change it at 5,000 miles to protect the turbocharger.
Does the Mazda CX-5 require synthetic oil?
Yes. Mazda specifies full synthetic 0W-20 meeting API SP and ILSAC GF-6 (older models GF-5) for all CX-5 engines. The Skyactiv-G and turbo engines run tight tolerances and high compression that rely on a synthetic oil film, so conventional oil is not approved.
What oil filter does a Mazda CX-5 use?
The CX-5 uses a spin-on cartridge-style filter. Common OEM part numbers are PE01-14-302A or PE01-14-302B depending on year and engine. Aftermarket equivalents from Mazda-approved brands fit the 2.0L, 2.5L, and 2.5L turbo Skyactiv engines.

📝 TL;DR

  • Oil: 0W-20 full synthetic, every CX-5 engine, every year.
  • Capacity: ~4.5 qt (2.5L & turbo), ~4.2 qt (2.0L), with filter.
  • Spec: API SP / ILSAC GF-6 (GF-5 on 2013–2017).
  • Interval: 7,500 mi normal, ~5,000 mi severe or turbo.
  • Substitute: 5W-30 only as a temporary fill on the 2.5L Skyactiv-G.