374 OPERATION
W3028721
Performance Bonus Guide
Volvo Engines Only
The Performance Bonus Guide is an aid that provides comprehensive feedback to the
driver about the optimum engine operating range during a trip. If adhered to, this results
in improved fuel efficiency. Icons in the Driver Information Display (DID) guide drivers
to the most efficient engine operating range for any given engine load and speed. This is
referred to as the engine’s "Sweet Spot".
The Performance Bonus Guide is inactive at low vehicle speeds. The engine is designed
to allow the driver to stay within the Sweet Spot during most normal operating conditions.
There may be situations where it is necessary to operate the engine outside the Sweet Spot,
however, this will negatively affect fuel consumption.