Operator`s manual

OPERATION
303
Tires
Heavy duty threaded tires increase rolling resistance considerably. For
long haul, choose a smoother, ribbed type tire. Choose a lugged type
tire only when the added traction in mud and snow is needed.
The number of wheels (axles) has a direct effect on the rolling
resistance and, thereby, the fuel consumption. For volume and/or low
weight transports, the use of a 4x2 instead of a 6x4 should be
considered.
If the tire pressure is too low, the rolling resistance increases and,
thereby, increases the fuel consumption. The overall economy is also
affected as tire wear increases considerably.
Gross Vehicle Weight
The gross vehicle weight of a vehicle combination has a large impact
on the rolling resistance.
Accessories
As a rule, accessories such as roof rack, advertising signs, bug
screens, exposed air horns, etc., have a negative effect on fuel
consumption.
Service and Maintenance
A modern heavy-duty vehicle requires regular and preventive
maintenance to ensure that all its components function as they should.
Use the recommended preventive maintenance (PM) program that
Volvo Trucks North America has developed for the vehicles. This
ensures optimal energy efficiency from all components that are
important to fuel consumption.
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