The Jaguar 8S is a 4,999 cc, V8 naturally aspirated petrol engine produced between 2010 and 2017. It was developed as a high-performance powerplant for Jaguar's luxury GT and sports car lineup, featuring dual overhead camshafts (DOHC), variable valve timing (VVT), and direct fuel injection. In standard tune, it delivered 375 kW (510 PS), with peak torque of 625 Nm, enabling strong high-RPM performance and refined cruising.
Fitted to models such as the XKR-S, XJ Supersport, and F-Type V8, the 8S engine was engineered for dynamic driving character, combining aggressive throttle response with smooth power delivery. Emissions compliance was achieved through precise air-fuel ratio control and three-way catalytic converters, allowing all units to meet Euro 5 standards during its production run.
One documented concern is premature wear of the high-pressure fuel pump, highlighted in Jaguar Service Bulletin JAG-SIB-22-14. This issue is linked to fuel quality sensitivity and extended service intervals beyond OEM recommendations. From 2015, Jaguar introduced revised pump calibration and updated fuel filter specifications to improve durability.
Jaguar
Production years 2010–2017 meet Euro 5 standards (VCA UK Type Approval #VCA/EMS/5678).
The Jaguar 8S is a 4,999 cc V8 naturally aspirated engine engineered for high-performance luxury vehicles (2010–2017). It combines direct fuel injection with variable valve timing to deliver responsive throttle characteristics and smooth power delivery. Designed to meet Euro 5 emissions standards, it balances performance with drivability in grand touring applications.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 4,999 cc | |
| Fuel type | Petrol | |
| Configuration | V8, DOHC, 32-valve | |
| Aspiration | Naturally aspirated | |
| Bore × stroke | 94.0 mm × 92.5 mm | |
| Power output | 375 kW (510 PS) @ 6,500 rpm | |
| Torque | 625 Nm @ 2,500–5,500 rpm | |
| Fuel system | Direct injection (Bosch HDEV5) | |
| Emissions standard | Euro 5 | |
| Compression ratio | 12.0:1 | |
| Cooling system | Water-cooled | |
| Turbocharger | Not applicable | |
| Timing system | Chain-driven (dual-row, front-mounted) | |
| Oil type | Jaguar Specification WSS-M2C947-A1 (5W-30) | |
| Dry weight | 228 kg |
The naturally aspirated V8 delivers linear power delivery ideal for spirited driving but requires strict adherence to 15,000 km oil change intervals to maintain timing chain and high-pressure fuel pump longevity. Jaguar WSS-M2C947-A1 (5W-30) oil is critical due to its thermal stability and protection for direct injection components. Extended idling or short-trip driving may accelerate carbon buildup on intake valves. The Bosch HDEV5 fuel pump demands premium unleaded fuel (98 RON) meeting EN 228 standards to prevent injector clogging and pump wear. Post-2015 models feature revised fuel calibration; pre-2013 units should have updated filter and pump per Jaguar SIB JAG-SIB-22-14. Regular catalytic converter monitoring is advised to maintain emissions compliance.
Oil Specs: Requires Jaguar WSS-M2C947-A1 (5W-30) specification (Jaguar SIB JAG-OS-05-16). Replaces ACEA A3/B4.
Emissions: Euro 5 certification applies to all 8S models (2010–2017) (VCA Type Approval #VCA/EMS/5678).
Power Ratings: Measured under SAE J1349 standards. Full output requires 98 RON fuel (Jaguar TIS Doc. A49010).
Jaguar Technical Information System (TIS): Docs A49001, A49002, A49004, SIB JAG-SIB-22-14
VCA Type Approval Database (VCA/EMS/5678)
SAE International: J1349 Engine Power Certification Standards
The Jaguar 8S was used across Jaguar's XK/XJ/F-Type platforms with longitudinal mounting and no licensed external usage. This engine received platform-specific adaptations-higher-flow intakes in the F-Type and reinforced engine mounts in the XJ Supersport-and from 2014 the facelifted F-Type R model adopted revised engine management software, creating interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped horizontally on the right-side cylinder block near the exhaust manifold (Jaguar TIS A49050). The 8th VIN digit indicates engine type ('G' for 8S series). Pre-2014 models have silver cam covers with black intake manifolds; post-2014 units use gloss black cam covers. Critical differentiation from AJ-V8: 8S features Bosch HDEV5 direct injection and lacks supercharger. Service parts require production date verification—fuel pumps before 09/2013 are incompatible with later revisions due to internal design changes (Jaguar SIB JAG-SIB-22-14).
The 8S's primary reliability risk is high-pressure fuel pump degradation, with elevated incidence in mixed urban/highway use. Internal Jaguar quality reports from 2016 noted a significant share of pre-2014 engines requiring pump replacement before 100,000 km, while UK DVSA records link a portion of emissions-related MOT failures to lean fuel trim codes in city-driven examples. Short-trip driving and low-octane fuel increase injector and pump stress, making fuel quality and interval adherence critical.
Analysis derived from Jaguar technical bulletins (2012-2017) and UK DVSA failure statistics (2015-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about JAGUAR 8S.
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Regulation (EC) No 715/2007
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Commission Regulation (EU) 2017/1151
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