The Chevrolet LXG is a 1,998 cc, inline-four turbocharged petrol engine produced between 2023 and 2024. It belongs to General Motors' Gen 3 small-displacement engine family, engineered for transverse FWD platforms. Featuring direct fuel injection, dual overhead camshafts (DOHC), and continuously variable valve timing (CVVT), it delivers 137 kW (186 PS) at 5,500 rpm and 260 Nm of torque from 1,800–4,000 rpm, enabling responsive urban performance.
Fitted to the Chevrolet Equinox (2023–2024) and Chevrolet Trailblazer (2023–2024), the LXG engine was designed for North American and Latin American markets requiring balanced power and efficiency in compact SUVs. It meets EPA Tier 3 Bin 30 and NAFCC Phase 2 emissions standards through a close-coupled three-way catalyst, cooled EGR, and advanced engine control calibration. The cylinder head features integrated exhaust manifolds for rapid light-off.
One documented reliability concern is premature wear of the low-pressure fuel pump (LPFP) in the fuel tank, identified in GM Service Information Bulletin 24-NA-007. This issue is linked to inadequate fuel cooling under sustained high-load operation, particularly in hot climates. From 2024, GM revised the fuel pump design and updated thermal management protocols to improve durability.
Chevrolet
Production years 2023–2024 meet EPA Tier 3 Bin 30 (US EPA Certificate #US23-0048); 2024 models comply with updated California LEV III SULEV30 standards.
The Chevrolet LXG is a 1,998 cc inline-four turbocharged petrol engine developed for transverse SUV applications (2023–2024). It combines direct injection with dual overhead camshafts and cooled exhaust gas recirculation to deliver strong low-end responsiveness. Designed for North American and Latin American markets, it balances performance with fuel efficiency and emissions compliance.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,998 cc | |
| Fuel type | Petrol (Unleaded, 87 RON min) | |
| Configuration | Inline-4, DOHC, 16-valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 83.0 mm × 92.3 mm | |
| Power output | 137 kW (186 PS) @ 5,500 rpm | |
| Torque | 260 Nm @ 1,800–4,000 rpm | |
| Fuel system | Bosch HDEV6 direct injection (up to 350 bar) | |
| Emissions standard | EPA Tier 3 Bin 30 (2023); LEV III SULEV30 (2024) | |
| Compression ratio | 10.0:1 | |
| Cooling system | Water-cooled | |
| Turbocharger | Honeywell HGK25 turbo (fixed geometry, water-cooled) | |
| Timing system | Dual-chain (primary and secondary) | |
| Oil type | GM dexos1 Gen 3 (SAE 0W-20) | |
| Dry weight | 145 kg |
The LXG's responsive power delivery enables strong city driving performance but demands strict adherence to 15,000 km oil change intervals using GM dexos1 Gen 3 (0W-20) to prevent LPFP overheating. The integrated exhaust manifold improves warm-up efficiency but increases cylinder head thermal load; coolant quality and level must be maintained. Extended high-speed operation in hot climates increases risk of fuel pump wear; periodic cooldown helps maintain fuel system longevity. Post-2024 models feature revised LPFP design; pre-2024 units should verify fuel flow and tank ventilation per GM SIB 24-NA-007. Direct injection necessitates periodic intake valve cleaning to mitigate carbon buildup.
Oil Specs: Requires GM dexos1 Gen 3 (0W-20) specification (GM SIB 24-NA-007). Supersedes API SP and ILSAC GF-6 standards.
Emissions: EPA Tier 3 Bin 30 applies to 2023 models (US EPA Certificate #US23-0048). LEV III SULEV30 compliance verified for 2024 models.
Power Ratings: Measured under SAE J1349 standards. Full output requires 87 RON fuel (GM TIS Doc. A32065).
General Motors Technical Information System (TIS): Docs A32165, A32590, SIB 24-NA-007
EPA Certification Database (Certificate #US23-0048)
SAE International: J1349 Engine Power Certification Standards
The Chevrolet LXG was used across Chevrolet's Delta platform with transverse mounting and shared with GMC for North American market adaptations. This engine received platform-specific tuning—revised torque curve in the Equinox and optimized cooling in the Trailblazer—and from 2024 the facelifted Trailblazer RS adopted a revised LPFP design, creating interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped vertically on the left-side cylinder block near the exhaust manifold (GM TIS A32265). The 8th VIN digit indicates engine family ('L' for LXG series). Pre-2024 models have silver valve covers with black turbocharger housings; post-2024 units use black valve covers with blue accents. Critical differentiation from non-turbo variants: LXG engines feature a high-pressure fuel pump on the left side and a water-cooled turbocharger. Service parts require production date verification—low-pressure fuel pumps for pre-2024 models are incompatible with post-facelift revisions due to redesigned impeller and thermal protection (GM SIB 24-NA-007).
The LXG's primary reliability risk is low-pressure fuel pump (LPFP) wear on early builds, with elevated incidence in hot climates. Internal GM quality reports from 2024 noted a significant share of pre-2024 engines requiring LPFP replacement before 100,000 km, while EPA field data links a portion of emissions-related failures to catalyst degradation in high-heat environments. Prolonged high-speed driving and high ambient temperatures increase LPFP and catalyst stress, making thermal management and oil quality critical.
Analysis derived from GM technical bulletins (2023-2024) and EPA field failure statistics (2024). Repair procedures should follow manufacturer guidelines.
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