fuel consumption of – an improvement of compared to its dual fuel LW2 predecessor. Furthermore, the LWR engine exceeded Euro 6 emissions standards. Specially hardened valves and valve seats. A redesigned cylinder head and manifold for improved air flow. Variable exhaust valve timing (the LW2 engine only had variable intake valve timing) Specially-developed fuel injectors. New pistons with pentroof-style centre-domes and valve eyelets for a higher compression ratio of 12.2:1 (compared to 10.2:1 for the dual fuel engine). A new fuel rail and a new LPG fuel filter. Applications: LCS The LCS is derived from the direct-injected LLT for use in hybrids, using the two-mode system. Differences from the LLT include a slightly lower compression ratio, 11.3:1, and lower power and torque peaks. It was to debut in the 2009 Saturn Vue Hybrid, where it would make at 6100 rpm and of torque at 4800 rpm. Fuel economy in city, on highway Applications: 2009 Saturn Vue Hybrid [product canceled] LF3 The 3.6 L twin-turbocharged version for the 2014 Cadillac CTS and 2014 Cadillac XTS was announced at the 2013 NYAS. The engine is rated at of power at 5750 rpm and of torque at 3500-4500 rpm (with 90% of torque being available at 2500-5500 rpm) and helps the CTS achieve time of 4.6 seconds with an 8-speed automatic transmission. In essence, the twin-turbo 3.6L V6 is the forced-induction variant of the popular LFX V6 found in the Cadillac ATS, XTS, and SRX, among many other GM models, with several important upgrades, including: All-new cylinder block casting All-new cylinder head castings Strengthened connecting rods Forged steel crankshaft Continuously variable valve timing Large intake valves and sodium-filled exhaust valves Machined, domed aluminum pistons with top steel ring carrier for greater strength 10.2:1 compression ratio Patented, integrated charge air cooler system with low-volume air ducts Twin-turbochargers produce more than Vacuum-actuated wastegates with electronic control valves All-new direct injection fuel system Tuned air inlet and outlet resonators, aluminum cam covers and other features that contribute to exceptional quietness and smoothness Applications: LF4 The LF4 is a higher-performance variant of the LF3 for use in the Cadillac ATS-V. Changes to the LF3 include: Turbochargers with low-inertia titanium-aluminide turbines and vacuum-actuated wastegates for more responsive torque production Compressors matched for peak efficiency at peak power levels, for optimal track performance Patent-pending low-volume charge-cooling system that optimizes packaging efficiency and maximizes boost pressure Lightweight titanium connecting rods