Roanoke Rapids herald., 1923-10-19
MOTOR TROUBLES
DUE TO POOR OIL
MEDIUM" Lubricator Scorched
Under Friction and Permitted
Bearings to Go Dry.
tBy ERWIN GREER. President Greer Col
lege of Automotive Engineering. Chicaso)


lege of Automotive Engineering. Chicaso)
Let's take typical case of the
pace that kills. Your Eighty-E Eight
rolls out of the salesroom on its first
1900 miles. OF course you drive pret.
ty slowly on the first five hundred or
thousand miles. SO as not to burn her
up. You watch the oil gauge and
when 1t slides down the scale you stop
at an oil station. And here's where
you get into trouble.
Medium or light oil?" asks the oil
man. Medium" you say because
medium" sounds like good aver
age. And then whatever brand of oil
that particular station has is poured
into your crankcase.
Then Came Musical Tap-Tap.
All right. Let's go. Soon 5000
clicks into place on the speedometer,
SO you let her out to discover what the
big eight can really do. A rough over
tone sounds over the sweet purr of
the motor, but you're hitting forty
five and are too busy to notice it.
Then comes hint Of labor into the
drone OF the motor and then musical
tap-tap. And as you let the accelerator
spring up from the floorboard the tap
becomes whack-and then-you
have no one to blame but yourself.
The $50 bill the garage man hands you
is the cost of lesson in Don't Just
Say OIL"
Here is what happened to the inside
of the motor. 1t was beautiful job
to stnrt with-joints cozy and bear
ings snug, to start Without 1t was
new metal. and surface ground against
surface. Tiny filings washed of into
the oil and sank to the crankcnse.
Some of the medium" oil you pur-
chased was poor stuff that scorched
under friction and permitted the
bearings to go dry Your car was de-
signed with broad bearing surfaces of
narrow clearance, calling for>light oil.
Medium oil was the same as a fat man
trying to squeeze through an elevated
train-neither are built for the work.
The bearings got hotter and wore
away quickly, dropping still more FL
ings down into the oil below.
Dust came in through the breather
tubes and the air intake, carbon be-
gan to accumulate, and as the motor
was never again given good clean
ing out. there formed in the reservoir
sandlike mixture of oil, metal and
various kinds Of grit. And when you
let her out the motor sent in an emer-
gency call for more oil and the pump
obeying flushed the friction surfaces
with sickly mush until finally a
wrlst-pin began to shrek.
Use Best Oil and Greases.
If only every motorist would keep
his car supplied with best oil and
greases adapted to 1t. 90 per cent Of
motor troubles would disappear.
Peculiar, too, isn't 1t, when you
come to think about 1t? Here you 60
and put half q years income into a
car and then neglect to give 1t the
proper fabrication. Gosh. It's the en-
bodiment of every principle known to
mechanics. from high tension to hy-
draulics; It's the peak of standard
perfection. With real care the normal
life OF motor car Is from fifty to a
hundred thousand miles and it may
be much longer than that. But at ten
thousand miles It has reached the
dangerous age and will begin to sow
It's wild oats If 1t is not carefully
watched. At twenty thousand Il ,s
rapidly sinking into senIle debility.
Man, you can't break the command
ments and stay young, not without q
lot OF expensive repairs, anyhow.
So use the best oil there is-it's the
cheapest In the long run.