The Mazda P5X0 is a 2,488 cc, inline‑four turbocharged petrol engine introduced in 2020 for the facelifted CX-5 and later the CX-50. It features Skyactiv-G direct injection, a twin-scroll turbocharger, and a 10.5:1 compression ratio, delivering 170 kW (230 PS) and 350 Nm for strong, accessible performance. Its high-pressure direct injection system enables precise fuel control under boost for responsive power delivery.
Fitted primarily to the updated CX-5 (KF) and North American CX-50, the P5X0 was engineered to provide a more engaging, torque-rich driving experience compared to its naturally aspirated predecessor. Emissions compliance for global markets, including Euro 6d and ULEV II, is achieved through a gasoline particulate filter (GPF) and optimized combustion calibration.
One documented service concern involves potential carbon buildup on intake valves, a known characteristic of GDI turbo engines. Mazda Service Information Bulletin 01-005/21 outlines inspection and cleaning procedures for vehicles exhibiting drivability issues. Minor ECU calibration updates have been issued for model year 2023 to refine throttle response.
Mazda
Production years 2020–Present meet Euro 6d standards for relevant markets (VCA UK Type Approval #VCA/MZ/8765).
The Mazda P5X0 is a 2,488 cc inline‑four turbocharged petrol engine engineered for mid‑size SUVs (2020-Present). It combines Skyactiv-G direct injection with a twin-scroll turbocharger to deliver strong, low-end torque and spirited acceleration. Designed to meet stringent Euro 6d and ULEV II standards, it balances performance with modern emissions control.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 2,488 cc | |
| Fuel type | Petrol | |
| Configuration | Inline‑4, DOHC, 16‑valve | |
| Aspiration | Turbocharged (Twin-Scroll) | |
| Bore × stroke | 89.0 mm × 100.0 mm | |
| Power output | 170 kW (230 PS) @ 5,000 rpm | |
| Torque | 350 Nm @ 2,000–4,000 rpm | |
| Fuel system | Direct Injection (Skyactiv-G), High Pressure | |
| Emissions standard | Euro 6d, ULEV II | |
| Compression ratio | 10.5:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Twin-Scroll (Mitsubishi Heavy Industries) | |
| Timing system | Chain-driven | |
| Oil type | Mazda Genuine 0W-20 (API SP) | |
| Dry weight | Not Publicly Available |
The twin-scroll turbo provides strong, low-RPM torque ideal for overtaking and towing, but requires strict adherence to 10,000 km or 12-month oil change intervals to prevent carbon buildup and turbo degradation. Mazda Genuine 0W-20 oil is critical due to its specific formulation for turbocharged GDI engines. The engine features a gasoline particulate filter (GPF), requiring the use of Top Tier detergent fuel to prevent premature clogging. Intake valve cleaning may be necessary as preventative maintenance around 80,000–100,000 km per service recommendations.
Oil Specs: Requires Mazda Genuine 0W-20 meeting API SP (Mazda Owner's Manual). Lower viscosity aids turbo spool and efficiency.
Emissions: Euro 6d certification applies to all P5X0 engines in this production period (VCA Type Approval #VCA/MZ/8765).
Power Ratings: Measured under SAE J1349 standards. Output figures are consistent across specified model applications (Mazda Group PT-2023).
Mazda Technical Information System: ETK Doc. MZ-ETK-2488-T, SIB 01-005/21
VCA Type Approval Database (VCA/MZ/8765)
SAE International: J1349 Engine Power Certification Standards
The Mazda P5X0 was used across Mazda's KF/PU platforms with transverse mounting and no external licensing. This engine received minor ECU calibration updates for the 2023 model year but no major hardware revisions affecting core compatibility. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on a metal plate affixed to the cylinder head, near the ignition coils (Mazda ETK Doc. MZ-ETK-2488-T). The 8th digit of the VIN is 'P' for the 2.5L Skyactiv-G turbo petrol engine. Visually, the engine features a black plastic cover with "SKYACTIV-G 2.5T" branding and a visible twin-scroll turbocharger with associated piping on the exhaust manifold side. Differentiation from the naturally aspirated LFY7: P5X0 has a turbocharger, intercooler, and boost pressure sensor.
The P5X0's primary documented concern is intake valve carbon buildup, with elevated incidence in vehicles subjected to frequent short trips. Mazda internal service data indicates this is a common maintenance item rather than a failure, while owner feedback often cites it as a cause for drivability complaints. Regular use of quality fuel and adherence to service intervals make preventative cleaning a manageable task.
Analysis derived from Mazda technical bulletins (2020-2024) and aggregated owner-reported data. Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about MAZDA P5X0.
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UK vehicle approval processes, import rules, and MoT guidance.
DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
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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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