When the main and auxiliary fuel tanks are
at or near full, the app displays 100%.
Note: Once the auxiliary tank reaches 2 gallons of
remaining fuel, the pump will run for 10 minutes
consecutively. If the power is disconnected during
this period (e.g., the vehicle is shut o), the 10 minute
period will start over when the power is restored. The
10 minute period will also start over if the main tank
increases above 25% while the pump is still running.
MAIN
AUX
100% 100%
When the main tank falls below 85%,
the system automatically transfers
fuel from the auxiliary to keep the
main tank at 85% until both tanks are
equal.
MAIN
AUX
85% 85%
During fuel transfers, “PUMP ON” will
appear. The system maintains bal-
anced fuel levels in both tanks until
each tank reaches 25%.
MAIN
AUX
50% 50%
When both tanks reach 25%, fuel is
transferred to the main tank, keeping
it 25% full until the auxiliary tank is
empty.
MAIN
AUX
MAIN
AUX
The main tank now has 25% of fuel capacity,
and the auxiliary tank is empty.
25% 25%
25% 0%
5
Fuel Tank Levels
The TRAX 4™ system will transfer fuel at predetermined fuel levels while the
vehicle is in use, based on the individual vehicle fuel system calibration and size
of the Transfer Flow auxiliary fuel tank (g. 8).
To change gallons to percentage of fuel in each tank, tap on the gallons/
percentage values or by changing the fuel display settings in the setup screen.
g. 8