How to Change Oil on a Mazda CX-5

📋 Mazda CX-5 Oil Specs at a Glance

This guide covers the compact SUV (KF 2nd gen 2017-2024, KG 2025-2026). The Turbo CX-5 (Signature, Carbon Turbo) uses 5W-30, NOT 0W-20 - this is the biggest mistake DIYers make. Always verify your trim. Mazda specifies Mazda Genuine Supreme 0W-20 (a 0W-20 / GF-6 oil) for NA; turbo can use any 5W-30 API SP / GF-6A.

🛠 What You'll Need

• 4.8 of 0W-20 full synthetic engine oil (Mobil 1 Full Synthetic on Amazon)
• Mazda OEM PE01-14-302A oil filter (FRAM equivalent on Amazon)
• Drain pan (drain pan on Amazon)
• Socket for drain plug (metric socket set on Amazon)
• Oil filter wrench or cartridge cap (oil filter wrench on Amazon)
• Torque wrench (1/2" torque wrench on Amazon)
• Funnel (oil funnel on Amazon)
• Floor jack and jack stands or ramps (floor jack on Amazon)
• Latex gloves and shop rags

✅ Before You Start - Checklist

• Park on level, solid ground
• Confirm exact capacity and viscosity for YOUR engine variant
• Have a new crush washer / filter gasket ready (always replace, never reuse)
• Torque wrench calibrated and set to correct value
• 4.8 of fresh oil purchased - rounded UP, not down

📝 Step-by-Step: Mazda CX-5 Oil Change

1. Confirm your engine variantOpen the hood and check the engine cover or VIN sticker. Capacities differ between trims (4.8 qt (2.5L Skyactiv-G NA) / 4.6 qt (2.5L Skyactiv-G Turbo)). Buy the right amount of oil and the matching filter.
2. Warm the engine 5-10 minutesWarm oil drains faster and more completely. Do not run to full operating temperature - the drain plug will burn you.
3. Lift and secure the Mazda CX-5Use ramps or jack the front and place jack stands on the frame rails. Never work under a vehicle held only by a jack.
4. Remove the underbody panel if equippedMost Mazda models have a plastic skid panel held by 4-8 fasteners. Remove it for clear access to the drain plug and filter.
5. Position drain pan and remove the drain plugOffset the pan 6-8 inches forward of the drain plug - oil shoots sideways at first. Use the correct socket (typically 14mm-19mm). Keep inward finger pressure as the plug spins free so it does not drop into the pan.
6. Drain fully (10 minutes minimum)Wait until only single drops fall. Wipe drain plug threads clean. Discard the old crush washer.
7. Install new crush washer and reinstall drain plugHand-thread first to avoid cross-threading. Then torque to 22 lb-ft (M14x1.5, new aluminum crush washer). Over-torquing strips the oil pan (a $400-800 mistake).
8. Move pan under the oil filterOil pours out as you loosen the filter or cap. Reposition the drain pan.
9. Remove the old filterFor spin-on filters, use the filter wrench counter-clockwise. For cartridge housings (common on Mazda CX-5), use the correct cap socket and remove the housing top. Pull the old element straight up.
10. Install the new filter or elementSpin-on: pre-lube the rubber gasket with fresh oil, thread on by hand, then hand-tight 2/3 to 3/4 turn past gasket contact. Cartridge: install new O-rings (always included with cartridge), drop in new element, torque housing cap to hand-tight 2/3 to 3/4 turn past gasket contact.
11. Lower the Mazda CX-5 and refill with new oilRemove the oil filler cap on the valve cover. Pour in slightly less than spec (4.8 target - pour 4.8 first, then check dipstick).
12. Start engine and verify no leaksIdle 30-60 seconds. The oil pressure light should extinguish within 5 seconds. Shut off and inspect the drain plug and filter from below - no drips allowed.
13. Check dipstick and top off to MAXWait 2 minutes for oil to settle into the pan. Pull dipstick, wipe, reinsert fully, pull. Add oil to the MAX mark - do NOT overfill (overfilling foams the oil and damages bearings).
14. Reset the maintenance reminder and record the changeReset via dashboard menu (procedure in FAQ below). Write the date and mileage on a sticker or in the door jamb. Next change at 7,500 mi normal.

🔗 Related Guides

❓ Mazda CX-5 Oil Change FAQs