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38 nüvi 1690 Owner’s Manual
Using the Tools
Adjusting the Fuel Price
Enter fuel price information to
calculate the fuel cost of routes and
to calculate the fuel reports.
1. Touch Tools > ecoRoute > Fuel
Price.
2. Enter the current fuel price, and
touch Done.
Taking the Driving Challenge
The Driving Challenge tool helps
you maximize your fuel economy
by scoring your driving habits.
The higher your overall score for a
Driving Challenge, the more fuel you
could save.
Touch Tools > ecoRoute > Driving
Challenge > Start.
Understanding Your Driving
Challenge Score
Touch on the Map page to view
details about your current challenge.
The leaf color on the driving
challenge icon changes depending on
your performance in the challenge.
Your overall score is the average of
three scores:
Acceleration score—gain points for
gradual acceleration; lose points for
rapid acceleration.
Deceleration score—gain points for
gradual braking; lose points for hard
braking.
Speed score—gain points for driving
at the best speed for conserving
fuel, which is 45–60 mph for most
vehicles.