Can I put a fuel in Fluid 3 to Fluid 16 for a vehicle?

Fleetwatch FMS · Data Tools Vehicle Setup

Assigning Fuel to the Right Fluid Positions

Each vehicle in Fleetwatch has up to 16 fluid positions. Where you assign a fuel matters: only the Primary and Secondary fuel positions count toward a vehicle’s Total Fuel.

Fuel goes here

✔ Primary & Secondary Fuel

Diesel, unleaded, CNG, propane, and other fuels. These count toward Total Fuel.

Everything else goes here

Fluid 3 through Fluid 16

Oil, ATF, coolant, DEF, and other non-fuel fluids.

Why it matters

Fuel can technically be assigned to positions 3 through 16, but it won’t be counted toward Total Fuel. That means the fuel dispensed may not show up in the vehicle’s service history or on many reports.

Where to Find Assigned Fluids

Vehicles › Settings › Properties tab › Fuel And Fluid › Fluids

Example: Right and Wrong

Assigned Fluids settings: Primary Fuel Unleaded and Secondary Fuel Propane marked with green checks; Diesel assigned to Fluid 7 marked with a red X

Position	Assigned	Result
Primary Fuel	U Unleaded	✔ Correct. Counts toward Total Fuel.
Secondary Fuel	P Propane	✔ Correct. Counts toward Total Fuel.
Fluids 3–6	ATF, coolant, oils	✔ Correct. Non-fuel fluids in fluid positions.
Fluid 7	D Diesel	✘ Wrong. Diesel dispensed here won’t count toward Total Fuel.

Vehicles That Use Two Fuels

If a vehicle uses two fuels (for example, unleaded and propane), check the Dual Fuel Vehicle? box. That opens the Secondary Fuel position. Set the second fuel there, along with its Flag Limit and Tank Size.

The checkbox may be labeled “Duel Fuel Vehicle?” on screen, as in the screenshot above.

Fixing a Fuel in the Wrong Position

1	Move the fuel to Primary or Secondary. If the vehicle’s main fuel is in a fluid position, set it as the Primary Fuel. If it’s a second fuel, check Dual Fuel Vehicle? and set it as the Secondary Fuel.
2	Copy over the Flag Limit and Tank Size to the new position.
3	Clear the old fluid position so the fuel isn’t assigned twice.
4	Click Save. Repeat for any other vehicles set up the same way.

Tip

If many vehicles share the same fluid setup, it’s faster to fix them with the Vehicle Options Utility or a vehicle template than one at a time. If fuel totals for past transactions look wrong because of a misassigned fuel, contact Fleetwatch Support.

Questions about fluid assignments? Contact Fleetwatch Support.