The GM turbo LTG engine made its debut in the 2013-model-year Cadillac ATS and Chevrolet Malibu. Offered as part of the the automaker’s large-displacement four-cylinder Ecotec engine family, the LTG features dual overhead camshafts, Spark Ignited Direct Injection fueling, a cast-aluminum block and head, a steel crank, and a forged powdered metal connecting rods. Now, however, this four-banger is on its way out the door, and is only offered in the Chevrolet Camaro and Chevrolet Malibu.
The GM turbo 2.0L I4 LTG engine is offered as standard equipment in the Camaro, while in the Malibu, it’s an optional up-level powerplant. The LTG was also recently discontinued in the Chevrolet Equinox and Chevrolet Terrain.
With the LTG’s departure, General Motors is now phasing in the newer turbocharged 2.0L I4 LSY. First announced for the 2019 Cadillac XT4 in 2018, the LSY can now be found in a variety of products, including every Cadillac sedan and crossover model.
For reference, the GM turbo LSY engine is offered as the base-level powerplant for the Cadillac CT4, the Cadillac CT5, the Chinese-market Cadillac CT6, the Cadillac XT4, the Cadillac XT5, and the Cadillac XT6.
Interestingly, the newer turbocharged 2.0L I4 LSY actually makes less power than the older GM turbo 2.0L I4 LTG which it’s replacing. The reason behind this is that the LSY was developed to be more refined and to run cleaner with fewer emissions per the latest, more-stringent emissions standards set in the U.S. and China.
For the sake of the comparison, the LTG produced 272 horsepower and 260 pound-feet of torque in the Cadillac ATS, whereas the LSY produces 237 horsepower and 258 pound-feet of torque in the 2020 Cadillac CT5.
Which engine do you prefer – the more-powerful LTG, or the more refined and cleaner LSY? Let us know by voting in the poll, and subscribe to GM Authority for more Chevrolet Camaro news, Chevrolet Malibu news, Chevrolet news, and around-the-clock GM news coverage.