The MPG a truck gets is going to depend on a number of factors, such as the drivetrain, weight, terrain, etc. Another important factor which affects the mileage a vehicle gets is how its driven, as well as the type of trailer you're pulling - a regular van trailer can be made quite aerodynamic in conjunction with a tractor, but trailers such as flatbeds and their loads typically don't create ideal aerodynamics.
AFAIK, no manufacturer claims their truck to be the most fuel efficient on the road, although they do place emphasis on features which can make a truck more fuel efficient, such as lighter weight, aerodynamic design, etc.
The chassis of a semi truck.
semi truck, or semi tractor trailer, and 18 wheeler.
Semi or Tractor Trailer-semi.
A vehicle with 18 wheels is commonly known as a "semi-truck" or "tractor-trailer."
The semi truck is also known as a tractor trailer
It's used to refer to the power unit of a semi-articulated tractor-trailer. In reality, any truck pulling a trailer could be considered a truck tractor.
An average semi 'tractor' is about 30 feet long.
Big truck, semi, 18 wheeler.
An articulated lorry is a truck and trailer - a combination involving a tractor unit and a semi-trailer, known in the United States as a semi-trailer truck.
The type of tractor trailer that can hold the heaviest loads is a Semi-Trailer truck. This is the heaviest truck that is allowed on the roads.
The word semi means half, or part.The tractor and trailer are two parts, hence semi truck and or trailer.
A semi, or tractor trailer.(18 Wheeler)