The GM LCV is a 3,564 cc, 60‑degree V6 petrol engine produced between 2010 and 2017. It features dual overhead camshafts (DOHC), variable valve timing (VVT), and direct fuel injection. In standard form it delivered 224 kW (301 PS), with peak torque of 358 Nm, providing strong, responsive power for mid-size and full-size applications.
Fitted to models such as the Chevrolet Impala, Malibu, and Cadillac ATS, the LCV was engineered for a balance of performance, refinement, and efficiency. Emissions compliance was achieved through precise direct injection and three-way catalytic converters, meeting stringent Euro 5 standards across its production run.
One documented concern is carbon buildup on intake valves, a known characteristic of direct injection engines without port wash. This issue, highlighted in GM Service Bulletin 12‑06‑01‑001, can lead to rough idle and misfires. GM recommends periodic intake cleaning as part of preventative maintenance for high-mileage vehicles.
Production years 2010–2017 meet Euro 5 standards (VCA UK Type Approval #VCA/EMS/5680).
The GM LCV is a 3,564 cc 60-degree V6 petrol engine engineered for mid-size and full-size sedans (2010-2017). It combines DOHC with direct injection and variable valve timing to deliver strong, responsive power and improved fuel efficiency. Designed to meet Euro 5 standards, it represents GM's push towards more efficient, higher-output V6 engines.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 3,564 cc | |
| Fuel type | Petrol | |
| Configuration | 60° V6, DOHC, 24-valve | |
| Aspiration | Naturally aspirated | |
| Bore × stroke | 99.0 mm × 76.0 mm | |
| Power output | 224 kW (301 PS) @ 6,800 rpm | |
| Torque | 358 Nm @ 4,800 rpm | |
| Fuel system | SIDI (Spark Ignition Direct Injection) | |
| Emissions standard | Euro 5 | |
| Compression ratio | 11.3:1 | |
| Cooling system | Water-cooled | |
| Turbocharger | None | |
| Timing system | Chain-driven | |
| Oil type | GM Dexos1 Gen 2 (SAE 5W-30) | |
| Dry weight | 162 kg |
The high-compression, direct-injection design delivers strong, linear power but is susceptible to carbon buildup on intake valves due to the lack of fuel wash. This requires periodic professional intake cleaning, typically recommended around 100,000 km. Using Top Tier detergent gasoline helps mitigate buildup. GM Dexos1 Gen 2 oil is mandatory for optimal engine protection and longevity. The engine is tuned for 95 RON fuel; lower octane will result in reduced performance and potential knocking.
Oil Specs: Requires GM Dexos1 Gen 2 (5W-30) specification (GM SIB 12-06-01-001).
Emissions: Euro 5 certification applies to all 2010–2017 models (VCA Type Approval #VCA/EMS/5680).
Power Ratings: Measured under SAE J1349 standards. Requires 95 RON fuel for rated output (GM Service Manual SI-B1000A).
GM Technical Service Information: Docs SI-B1000A, 12-06-01-001
VCA Type Approval Database (VCA/EMS/5680)
SAE International: J1349 Engine Power Certification Standards
The GM LCV was used across GM's Epsilon II and Alpha platforms with transverse mounting. This engine received platform-specific adaptations-unique engine mounts for the Cadillac ATS and specific ECU calibrations for the Chevrolet Impala-creating minor interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the front of the engine block, near the timing cover (GM Service Manual SI-B1000A). The 8th VIN digit for LCV-equipped vehicles is typically 'V'. The engine can be visually identified by its direct injection fuel rails running along the top of the intake manifold and the “3.6L V6 SIDI” badge on the plastic engine cover. Critical differentiation from the earlier LLT engine: LCV has a higher compression ratio (11.3:1 vs 10.2:1) and revised cylinder heads for direct injection. ECU software is specific to model and year.
The LCV's primary reliability consideration is intake valve carbon buildup, inherent to its direct injection design. While not a mechanical failure, it is a documented maintenance item that can affect drivability if neglected. GM service data indicates cleaning is a common high-mileage service procedure. Using Top Tier fuel and adhering to oil change intervals are critical preventative measures.
Analysis derived from GM technical bulletins (2010-2017) and UK DVSA failure statistics (2015-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about GM LCV.
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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
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VCA Certification Portal
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