Equipment for testing AdBlue quality. Oil tests
AdBlue® is filled into a separate tank. Fuel in the AdBlue® tank will permanently damage or destroy the SCR system, causing high cost of repairs.
The oil test paper is moved back and forth in the tank 3-5 times. A dark discoloration of the test paper indicates the presence of fuel.
Fuel does not mix with AdBlue®. It forms small droplets or a thin layer on the surface of AdBlue®. To give a positive reaction the test paper must come in contact with fuel in the tank.
Move test paper back and forth 3-5 times
Remove the test paper. A dark coloration indicates the presence of fuel
Different concentrations of fuel
Left: pure fuel
Right: pure AdBlue®