FLEET MAINTENANCE O IL STUDY
Motor Oil Storage
Some things to
keep in mind
By David A. Kolman, Editor
MAY 2017 | VehicleServicePros.com 17
Will you increase the number
of oil tanks to accommodate
CK-4 and FA-4?
18%
How will you store
CK-4 & FA-4?
Lubricating oils like motor oil
deteriorate with time, although
their stability can depend on
a number of factors, including
the storage environment.
Motor oil “shelf life” can be
extended with good storage
practices and ensuring stock
turnover so that oils are
used before any significant
performance loss has occurred.
High heat and extreme cold can
affect an oil’s stability and its
ability to effectively lubricate
an engine. High temperatures
increase the rate of oil oxidation.
Cold temperatures can
result in wax and possible
sediment formation.
The recommended storage
temperature range is from
32 degrees F to 77 degrees
F. Storage should be in a
cool dry indoor area.
Exposure to humidity can
cause condensation in motor
oil. This moisture can react
with the additives in the
motor oil and form insoluble
particles and sludge.
In general, the recommended
shelf life for oils is typically five
82%
19%
3%
20%
Drain and
clean two
existing storage
tanks
Install two
new tanks
Install one
tank and
convert one
old tank
58%
Other
IMPLEMENTING CK-4 AND FA-4 OILS
Other storage options indicated include:
• Purchase as needed
• Buy 55 gallon drums
• Buy by the gallon
• Not store the oil at all
• Mix the oils into their existing tanks
Photo from iStock
years when stored properly in
the original sealed containers.
DETERIORATION
An indication of possible
motor oil deterioration is a
cloudy appearance or strong
odor. When engine oils are
stored in unsealed containers
for a prolonged period of
time, they absorb moisture
from the air and this may
result in a hazy appearance.
Slight sedimentation may
occur over time with some
motor oils, but this generally
doesn’t have an adverse
impact on performance.
However, significant
sediment buildup could be
a sign of deterioration.
Unopened containers of
motor oil that are beyond
their shelf life may still be
suitable for service. The
product should be tested and
evaluated against the original
product specifications.
Proper storage of motor oil and
proper handling help to avoid
deterioration, contamination
and even costly waste disposal.