D2o—Lancaster Farming, Saturday, October 27,1984
By: Mark Elliot
Engine Division
AlUfl-Chalmen Corporation
MILWAUKEE, Wise. - Today’s
high-output turbocharged diesel
engines require proper care of
their lubrication system if they are
to deliver years of satisfactory
performance. Let’s examine the
functions and importance of
today’s motor oil.
What is the purpose of a motor
oil? If you answered “to lubricate”
you are only partially correct.
Motor oils have four major func
tions:
1. Clean - The motor oil must
keep internal engine parts free
from carbon and varnish that may
excellerate wear due to increased
friction or heat.
2. Cool - Motor oil acts as coolant
for all parts that it comes in con
tact with. Motor oil normally runs
around 210*F. This cooling action
helps control expansion of engine
parts.
3. Lubricate - Yes, the motor oil
must also act as a high quality
lubricant.
4. Seal - In addition to the three
items above, the motor oil helps
seal seals by allowing the seals to
retain a certain quantity of oil that
keeps remaining oil from leaking
out.
Today’s motor oils are available
in various grades and viscosities.
Take, for example, the two cans of
oil shown in “Oil Can 1” and “Oil
Can 2.”
Let’s break down the terms on oil
can No. 1.
Item
S.A.E.
30
A.P.I.
CD
Description
Society of Automotive
Engineers; Viscosity of thickness
at 212®F.; American Petroleum
Cut Energy Costs 75%—Uses the drying power of fan forced air. No
gas to buy. And the only electricity used powers the computer con
trolled fan system.
Reduced Shrinkage—Stmnk loss is cut up to 50% through natural
moisture removal without high temperature heat.
Better Grain Quality—With no high temperature heat to crack and
damage grain, more starch, sugar, valuable nutnents and profit are
retained.
It’s All in the Computer —The AeroDry Computer automatically
monitors dry down day and night—then holds optimum storage
conditions to keep gram in top condition.
Farm proven from the Midwest to the East Coast, the AeroDiy System
can improve your gram drying operation. Call or mail the coupon for
A better understanding of motor oil
r
LUBRICATE
Institute; Oil designed for high
output turbo-charged diesel
engines,
and on can No. 2
Viscosity of the oil measured at
O°F. in sable universal seconds and
computer from the 0° scale.
Viscosity at 212*F computer from
the 212° scale
Viscosity at 212°F computer from
the
212° scale.
Now let’s compare the two motor
oils.
Do we know what the viscosity of
oil No. 1 is at 0°? Not really. In the
case of oil No. 2 we know that at 0°
the oil flows or acts as a 15W and at
212° it acts as a 40 grade. We must
remember that the W scale or the
first designation of the multi-vis oil
is taken at 0° while the second
rating is derived at 212°F.
Many people think that a multi
vis oil such as a 15W-40 actually
gets thicker as it heats up. Not
true. The oil will become less
viscous or thins out as temperature
rises. All multi-vis ratings have
done for us allowing a
measurement of the motor oil both
when it is cold for cold drinking
and starting capabilities and warm
Slash drying
costs as much
as 75% with
the AeroDry"
System
6®
COOL
CLEAN
SEAL
Item
15W
40
Description
/e, r '-o\
( 30 /
OIL CAN NO 1 OIL CAN NO 2
for the needed protection when the
engine is operating under full load.
A.S.A.E. 30 oil simply tells us
that oil will act as a 30 grade at
212*. We really don’t know for sure
what its viscosity is at o°.
Allis-Chalmers recommends
both the S.A.E. 30 or a 15W-40 CD
rated motor oil depending on the
climate. All new engines shipped
from the factory have a 15W-40 CD
motor oil fill. See chart for
recommended oil for your par
ticular climate.
The last and probably most
important item in guaranteeing a
long-lived engine is proper oil and
filter change intervals. AUis-
Chalmers recommends that the
engine oil and lube oil filters should
be replaced every 100 hours. This
holds true on all engines that do not
use a by-pass oil filtration system.
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Increased oil change intervals can remember that engine oil does
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is spectrographically analyzed for quality CD rated oil of the viscosity
metallic contaminations. Many that best fits a user’s climate and
larger fleet oil suppliers offer this implementing regular oil and filter
service at a nominal fee. changes, an engine should offer
In summary, we must years of satisfactory performance
W.
corn rootworm found in Md.
ANNAPOLIS A potentially
important insect affecting corn has
been detected for the first time in
Maryland in 1984. The western
com rootworm (WCR), a one-inch
“beetle”, was recovered in
specialized traps and represents a
new State record for this pest.
A network of traps baited with
WCR female sex attractant was set
up and maintained through a
cooperative program involving the
University of Maryland, Maryland
Department of Agriculture, and
USDA, APHIS. More than 100 traps
were placed within 16 counties.
WCR adults were recovered in the
following counties; Allegany, Anne
Arundel, Baltimore, Carroll,
Frederick, Garrett, Harford,
Howard, Kent, Montgomery,
Prince Georges, Queen Anne and
Washington.
WCR is a serious pest of com in
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the Midwestern U.S. It causes an
annual yield loss in excess of 5
percent. In addition over half of the
corn crop is treated with in
secticides to control this pest.
Damage on com by WCR is similar
to that of other rootworms. The
immature stages feed on com
moots causing “goosenecking”,
lodging and stressed plants.
In recent years this pest has
been expanding its eastern range;
moving into Ohio and Penn
sylvania. Its impact on Maryland
com production is, at present,
unclear. WCR has shown in
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secticides in the Midwest. Rainfall
and soil surface texture influence
its numbers within an area. There
are indications that WCR may pose
a more serious risk in the heavier
soils in Maryland. Detection
surveys will be continued
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