How many mpg does a 1984 gmc suburban with the 6.2 diesel get?

A 1984 GMC Suburban with the 6.2-liter diesel engine typically gets around 15 to 20 miles per gallon (mpg) depending on driving conditions and maintenance. Fuel efficiency can vary based on factors like load, driving habits, and terrain. Generally, diesel engines are more fuel-efficient than their gasoline counterparts, so the Suburban's mpg reflects that advantage.