Evening star., 1932-08-21
his company to take an interest in this
matter in their respective communities
Radiator Flushing.

Radiator fIuSn1nE.
Up to recently, it was generally be-
lieved that a mere flushing with plenty
of clean water was sufficient to properly
clean the rust and scale from the radi-
ator and engine block of an automobile
But recent laboratory discoveries have
exploded this theory.
Members of the Motor and Equipment
Manufacturers Association have been
carrying on laboratory and field inves-
legations on this and kindred subjects
for several years, and they now an
nounce that more than water is needed
to properly clean automobile cooling
systems.
Air and water combine to rust iron.
Iron Is used to make automobile en-
gines and water, of course, is used to
cool them. Air is present at the top
of the radiator and is sucked into the
cooling system by the circulation of the
water; therefore, rust will be found IN
the cooling system Of any car unless
some antitrust treatment has been used
by the owner.
The owner who "lushes" the cooling
system of his car with only stream
of water from garden hose isn't really
cleaning the system. All the garden
hose does Is wash away the loose rust.
adhere to the engine or are wedged into
the radiator so that no mere stream Of
water will loosen them. If this rust is
allowed to accumulate in the radiator
over a period CT time the radiator will
become Clogged, the car will overhead
and the owner may have to buy new
radiator Occasional radiator cleaning
will save American motorists real
money each year.
Cooling systems should be properly
cleaned by service station.
Anent White Lines.
For all its meek appearance the
white line on the highways, over which
Americans drive their motor vehicles,
carries as heavy a weight Of scientific
safety opinion as ever has been as
signed to any traffic safety device. This
point Is made by Charles M. Upham,
engineer director of the American Road
Builders Association, who adds that
the white line merits the 100 per cent
respect of every motorist.
In its particular field" says Mr.. Up
ham, "the white line is as full OF
meaning as any red light that ever
warned motorists of danger ahead Of
them.
"As used on curves or on hills-which
the road designer calls vertical curves
the white line performs a double func-
ton. 1t tells the motorist first that he
cannot see potential dangers ahead and
that he can achieve the greatest possible
degree of safety by remaining on that
half of the road which the line ap-
portions for his sole use.
Although one of the most important
of all traffic symbols, the white line
also is one of the greatest money eavers
to the Nations motorists. 1t would be
decidedly illuminating for the avereg,
motorist to pause and reflect upon what
it would cost to eliminate the curves
and hills which this simple, inexpensive
device makes it possible for him to
traverse with safety so long as he gives
it the respect which is its proper due"
After years of performing yeoman
safety service on rural highways, the
white line now is being introduced into
municipal traffic control with impress
sive results in the form of freer and
safer vehicle movement and increased
street capacity. Mr.. Upham declares.
C0lored Tires.
Colored tires are now going to be the
vogue. At least that is what is claimed
by some of the leading tire manufac-
turers. The colors will not be just the
primary colors, but will be manufac-
tured to include English vermillion,
Carnelian, bronze, granite. willow, lime,
ochre, pearl tangerine jade. gold. Ara
bian brown. spruce, carnation, cardinal,
amber. sandstone, sienna, laurel and
claret.
Perhaps there will be enough to match
miladys evening gowns.