Please note the following:
The first three buttons under the "stop" button are low
pressure, very concentrated soaps used for cleaning tires, wheels
and engines, cleaning bugs and road tar (magnesium chloride in winter)
and a pre-soak solution. These low pressure soaps should be used
to get the dirty areas wet, let the soaps work for at least 30-45
seconds, then spray off with the high pressure soap cycle.
It is the low pressure soaps that produce the best results if used
correctly, as they are designed to loosen the dirt and road grime
If you need to clean your engine and/or tires and wheels, start
with the engine first, then move on to the tires and work from left
to right, starting with the left front wheel. It takes 15-20 seconds
for the soaps to change and be delivered to the spray gun. By starting
at the left front wheel, you can change the soap cycle just before
finishing with the left rear tire.
Be sure to finish with the SPOT FREE rinse. This is pure water made
inside the equipment room using a reverse osmosis system. It will
not cause spotting on your car. This is also a low pressure spray.