GMC Unveils New Fuel-Efficient Engine

When you think of fuel efficiency, we know that a pickup truck is not usually the first thing that comes to mind. Well, the 2020 GMC Sierra 1500 is here to change all of that. And it all starts with the engine. With the brand-new Duramax® 3.0L Turbo-Diesel 1-6 engine, GMC has given fuel efficiency…