The Mazda P5Y6 – Petrol is a 2,488 cc, naturally aspirated V6 engine produced between 2014 and 2018. It features a dual overhead camshaft (DOHC) design with 24 valves and Mazda’s variable valve timing (S-VT) on both intake and exhaust camshafts, delivering outputs of 126 kW (171 PS) and 230 Nm of torque. Its 60-degree V-angle and compact design were engineered for smooth operation and transverse mounting in Mazda’s front-wheel-drive platforms.
Fitted primarily to the second-generation Mazda CX-5 (KF platform) and the Mazda6 (GJ platform) in specific global markets, the P5Y6 – Petrol engine was designed to offer a refined, torque-rich alternative to four-cylinder turbo options. Emissions compliance for its production period was met through direct injection and catalytic converters, allowing adherence to Euro 5 standards across its primary markets.
One documented concern involves potential carbon buildup on the intake valves, a common trait of direct-injection engines without port injection, as noted in Mazda Technical Service Bulletin 02-015/16. This can lead to rough idling or reduced fuel economy over extended service intervals. Mazda recommends periodic inspection and cleaning as part of preventative maintenance.
Mazda
Production years 2014–2018 meet Euro 5 standards (VCA UK Type Approval #VCA/EMS/MZD-P5Y6-PETROL).
The Mazda P5Y6 – Petrol is a 2,488 cc V6 naturally aspirated engine engineered for mid-size SUVs and sedans (2014-2018). It combines DOHC 24-valve architecture with dual S-VT variable valve timing to deliver smooth, linear power and refined cruising. Designed to meet Euro 5 standards, it prioritizes drivability and refinement over peak output.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 2,488 cc | |
| Fuel type | Petrol | |
| Configuration | V6, 60°, DOHC, 24-valve | |
| Aspiration | Naturally Aspirated | |
| Bore × stroke | 89.0 mm × 66.6 mm | |
| Power output | 126 kW (171 PS) | |
| Torque | 230 Nm @ 4,000 rpm | |
| Fuel system | Gasoline Direct Injection (GDI) | |
| Emissions standard | Euro 5 | |
| Compression ratio | 10.0:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | None | |
| Timing system | Chain-driven | |
| Oil type | SAE 5W-30 API SN/SP | |
| Dry weight | 165 kg |
The V6 configuration provides exceptionally smooth power delivery ideal for relaxed highway cruising but requires adherence to 10,000 km oil change intervals using the specified 5W-30 oil to maintain chain and VVT system health. As a direct-injection engine, periodic (every 60,000–80,000 km) intake valve cleaning is recommended per Mazda TSB 02-015/16 to prevent carbon buildup and maintain optimal performance and fuel economy. The timing chain is generally robust but benefits from clean oil to ensure longevity.
Oil Specs: Requires SAE 5W-30 meeting API SN/SP specification (Mazda Owner's Manual 2016). ACEA A5/B5 is also suitable.
Emissions: Euro 5 certification applies to all 2014–2018 production models (VCA Type Approval #VCA/EMS/MZD-P5Y6-PETROL).
Power Ratings: Measured under SAE J1349 standards. Output is consistent across all model applications (Mazda PT-2018).
Mazda Technical Information System: Workshop Manuals KF/ GJ Series
Mazda Technical Service Bulletin 02-015/16
VCA Type Approval Database (VCA/EMS/MZD-P5Y6-PETROL)
The Mazda P5Y6 – Petrol was used across Mazda's KF and GJ platforms with transverse mounting. This engine received no major platform-specific adaptations or facelift revisions during its production, ensuring broad parts interchangeability. All applications are documented in OEM technical bulletins.
Locate the engine code stamped on the front of the left cylinder bank, near the alternator (Mazda Workshop Manual KF/ GJ). The 8th digit of the VIN typically corresponds to the engine type ('P' for the P-series V6). Visually, it can be identified by its wide V6 profile, “P5” casting on the block, and the “SKYACTIV-G” branding on the plastic engine cover. Critical differentiation from the four-cylinder SKYACTIV-G: The V6 has two cylinder heads and a visibly wider engine bay footprint.
The P5Y6 – Petrol's primary reliability consideration is intake valve carbon buildup, a common characteristic of direct-injection engines without port injection. Mazda TSB 02-015/16 documents this as a known service item, while general owner reports indicate it is the most frequent cause of drivability complaints on high-mileage examples. Adhering to the recommended cleaning intervals is critical for maintaining optimal performance.
Analysis derived from Mazda technical bulletins (2014-2018) and aggregated owner-reported service data (2016-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about MAZDA P5Y6.
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DVLA: Engine Changes & MoT
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Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
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