oldsoulwhisper on Instagram: "The GMC Sierra is a full-size pickup truck offering a range of powertrains, advanced technologies, and robust capabilities. The base engine is a 2.7-liter turbocharged inline-4 with 310 horsepower at 5600 RPM and 430 lb-ft of torque at 3000 RPM, featuring active fuel management and variable valve timing. The 5.3-liter EcoTec3 V8 generates 355 horsepower at 5600 RPM and 383 lb-ft of torque at 4100 RPM, equipped with dynamic fuel management (DFM) and direct injection.

Demystifying E85 & Flex Fuel