What is the difference between Active Fuel Management and Dynamic Fuel Management?

What is the difference between Active and Dynamic Fuel managementGM has created fuel-saving engine systems that have saved gallons of fuel for many GMC drivers. These are the Active Fuel Management and Dynamic Fuel Management systems. With these systems, you can get all the power from your engine when you need it, and less when you don't -- saving precious fuel and wear on your engine. Learn more about these engine systems with Speck Buick GMC here! 
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