Bully Dog Watchdog - Manual (Page 25)

OperATION
25
3 continued. The diagram below illustrates the Adjust Speed Display menu, on the screen is an ex-
ample of how to make an adjustment for a percent difference of 5.0% that was calculated using
either the GPS method or the Stop Watch method.
Checking WatchDog Fuel Economy Read out Accuracy:
The actual fuel economy of a vehicle changes all the time, it is important to check the accuracy of the
average economy readout on the WatchDog at least once every changing season. Just to illustrate one
example of why fuel economy needs to be adjusted: did you know that fuel delivered to gas stations
during the winter months on average contains 1.3% less energy than in warmer seasons. That means
the same amount of liquid is going into the tank, but it is 1.3% less affective, on average. There are
many outside factors like this that you don’t control and the WatchDog doesn’t know the difference
so that’s why it is important to adjust the fuel economy of the WatchDog every once in a while. Follow
the Steps in this section to adjust the Watch Dog Fuel Economy Read Out.
1. Go to the gas station and get a full tank of gas.
2. Before you start driving again reset the WatchDog’s average economy and rest your vehicles trip
odometer. Keep in mind that if the vehicles speedometer is off then the odometer will also be off. You
will need to be able to calculate the exact amount of miles driven before your next refill.
3. Drive the vehicle for an entire tank or two and then calculate your vehicles fuel economy by hand
which is simply miles driven divided by the gallons used to fill the tank back up.
SPEED DISPLAY
Select the percentage
to adjust speed by.
-5%
Adjustment %
Selected:
-8%
-7%
-6%
-4%
-3%
-2%
-1%
-5 %
Go Back
to Vehicle Setup