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 sec…
Mazda
Production years 2014–2018 meet Euro 5 standards .
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 | Refer to vehicle handbook / manufacturer specification | |
Dry weight | 165 kg |
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.
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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.
The most common questions about engine codes, what they mean, how to find them and how this database works
Yes, the P5Y6 – Petrol is generally reliable long-term. Its main consideration is intake valve carbon buildup, which is a known service item addressed in a technical bulletin. With regular oil changes and periodic intake cleaning, these engines can easily exceed 200,000 km without major issues.
The most common issues are intake valve carbon buildup (causing rough idle), S-VT solenoid failure (causing cam timing codes), coolant thermostat failure, and worn engine mounts. These are well-documented and typically straightforward to fix with OEM parts.
The P5Y6 – Petrol engine was used in the second-generation Mazda CX-5 (KF, 2014-2018) and the third-generation Mazda6 (GJ, 2014-2018), specifically in the 2.5i variants for markets where the V6 was offered. It was not used in any other manufacturers' vehicles.
Minor power gains are possible with an ECU remap, but significant increases are limited by the naturally aspirated design. Most tuning focuses on improving throttle response and optimizing the torque curve rather than large horsepower gains. Forced induction is not a factory-supported modification.
Fuel economy is moderate for its size. Expect around 9.5–10.5 L/100km in combined city/highway driving, which translates to roughly 27–29 mpg (UK). Highway cruising can yield figures closer to 7.5–8.0 L/100km (35–37 mpg UK).
Yes. The P5Y6 – Petrol is an interference engine. If the timing chain were to fail (which is rare with proper maintenance), the pistons would collide with the open valves, causing catastrophic internal engine damage.
Mazda specifies SAE 5W-30 engine oil meeting API SN or SP (or newer) specifications. Using a high-quality synthetic oil of this grade is crucial for protecting the VVT system and ensuring long engine life.
Comprehensive technical documentation and regulatory references
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Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
EUR-Lex
EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
GOV.UK: Vehicle Approval & V5C
UK vehicle approval processes, import rules, and MoT guidance.
DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
Vehicle Certification Agency (VCA)
UK type-approval authority for automotive products.
Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
WLTP and RDE testing procedures for emissions certification.
GOV.UK: Vehicle Approval
UK compliance and certification requirements for imported and modified vehicles.
VCA Certification Portal
Type-approval guidance and documentation.
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