Many motorists today are confused. For several years General Motors,
BMW and Mercedes-Benz have been installing monitors on their dashboards
that light up to indicate when it's time to change oil. GM monitors have
frequently allowed motorists to drive 5,000 miles and as much as 7,000
miles or more before signaling that it's time to change oil. The
Mercedes-Benz service system indicates 10,000 to 20,000 mile oil change
intervals. Naturally, this flies in the face of the 3,000-mile drain recommendation that oil companies insist are necessary to protect engines.
What's a car owner to do?
Petroleum oil companies have insisted that their oil needs to be changed
every 3000 miles, even for these vehicles with the dashboard light. But
the world's largest automaker, General Motors, states that oil change
intervals should not be based on miles driven, but rather on driving
style. In a feature story titled "Super size Me! GM moves to extend
drain intervals," (May 2004 Lubes N Greases, vol. 10 issue 5) David
McFall unveils the latest move in GM's strategic plan to cut loose drain
intervals.
The GM solution is for motorists to depend on their patented Oil Life
System (OLS). The owner's manuals in today's GM fleet no longer make
specific mileage recommendations at all. Instead, the GM Oil Life System
analyzes the engine's operational data including temperature, revolutions
and speed, to calculate the rate of engine oil degradation and determine
when an oil is nearing the end of its life. At this point a message on the
dashboard signals that it is time to change oil. Each OLS computer model
is engine-specific because GM believes each engine behaves differently
under the various driving situations and conditions. Driving styles vary
as well. The OLS allegedly calculates
all factors pertaining to both the engine and the driver and thereby makes
its oil change recommendations. According to GM senior project engineer
Robert Stockwell, who has been studying analyzed oil samples from vehicles
with OLS, "In all cases where the OLS signaled for an oil change it
was before the oil was worn out." And how long were the drain
intervals? "Many of
these samples," said Stockwell, "were from vehicles with greater
than 10,000 miles on the oil, a few with more than 14,000 miles and at
least one with 16,000 miles. These intervals were recorded in vehicles
using regular mineral oil. Synthetic oil gets even longer oil change
intervals."
Let There Be Light
Long before the issue of OLS and extended drains hit trade magazine
editorial radar screens, AMSOIL began to zero in on this opportunity for
Dealers. The theme of extended oil service life with AMSOIL synthetic
motor oils has, of course, been a feature of the company from the
beginning.
Despite the clear environmental benefits of extending drain intervals, the
major oil companies dug in their heels. For more than three decades the
message of regular, frequent oil changes has been sold to consumers and
the mechanics who service their vehicles. Millions, if not billions, of
dollars have been spent on advertising and training to reinforce this
"change your oil every 3,000 miles" mantra. In February of 2003
AMSOIL published an article directly targeted to the impact oil change
indicator lights were having on drain intervals. "Oil Monitors
Revisited" (National Oil & Lube News, Feb. 2003) combined
observation, internet research and first hand comments from a GM power
train authority to shed light on the philosophy behind the Oil Life
Sensor. At the heart of it all, GM does not believe in recommended drain
intervals. GM believes in the oil sensor logarithm, developed by Dr.
Shirley Schwartz and tested over many millions of miles of service. A
month later, in March 2003, David McFall of Lubes N Greases chided the oil
industry for keeping drain intervals shackled at three thousand miles when
they knew that longer drain intervals were completely realistic. In a
column titled, "Drain Intervals: How Long Must We Wait?", McFall
held up AMSOIL as an oil
company that was "unshackled." This year, McFall turned his
attention to the OEMs themselves, focusing on "the light," that
is, the GM oil change indicator light. Clearly GM has unshackled its oil
change indicator and soon there will be 24 million more cars on the road
relying on the Oil Life System.
The Demand For Better Oil
A second trend that is simultaneously occurring today has to do with
emissions. For a number of years the automotive and oil industries have
been grappling with the problem of meeting increasingly stringent
emissions standards. The result of this governmental pressure on OEMs is
that oil companies have been forced to reduce additive content in order to
increase catalyst life. Catalysts are the element in the catalytic
converter that reduce the bi-products of combustion in the internal
combustion engine. There are trade-offs, however. First, when
additives that provide wear protection are reduced, the result is the
potential of increased wear. Second, oil companies must wrestle with the
matter of backward compatibility. That is, when oil formulations are
altered, can they also be retrofitted to older car models? Finally,
today's smaller, hotter engines present new challenges as well. As you
would expect, AMSOIL synthetic motor oils address nearly all of the
problems brought on by these changes. The problem of increasingly hot
engines is solved by synthetics because they reduce friction and,
consequently, the primary by-product of friction, which
is heat. Even in the presence of heat they are oxidatively stable.
Dealer Opportunities
As GM progressively extends drain intervals and promotes the environmental
benefits of extended drains, the AMSOIL message will become increasingly
mainstream and the 3,000-mile drain interval message will be further
eroded. Eventually every automaker will follow suit, not only for
environmental reasons but because consumers are busier than ever and
frequent oil changes have
always been a hassle. Why, with vehicle manufacturers recommending drain
intervals longer than 3,000 miles, would customers trust an oil that an
oil manufacturer recommends be changed at 3,000 miles? Ironically, the two
needs of modern motor oils are contradictory. On the one hand, motorists
want oil to last longer and require fewer oil changes. On the other hand,
governmental pressure on OEMs is forcing motor oil companies to reduce the
amount of anti-wear additives in motor oil to keep emissions in check with
the result that oils cannot be counted on to last as long.
AMSOIL is already well positioned for both of these performance
expectations. Testing is currently underway with new formulations that
will keep AMSOIL ahead of the curve, no matter how steep the expectations
become. And for the 200 million cars currently in circulation today,
AMSOIL synthetic motor oils remain the best value and offer the best
protection money can buy. Ultimately, no matter what the oil light says,
GM recommends that if the light hasn't gone on in one year, the oil and
filter should be changed. A new idea? Not really. That is a message that
was stamped on the first can of
AMSOIL Super Premium 100% Synthetic Motor Oil over thirty years ago. We
were first then, and the competition still hasn't figured us out.
QUESTIONS AND ANSWERS
Q Now that General Motors has broken away from any mileage
recommendations, how are AMSOIL Dealers to instruct their customers when
the light goes on?
A At the end of the day AMSOIL still recommends oil change
intervals based on miles. Just as General Motors has done extensive
testing on their algorithm in order to feel confident in its
recommendations, AMSOIL likewise has done extensive testing in regarding
its motor oils. It should be noted that GM set up its system based on
typical conventional motor oil. Synthetic motor oil can go further, as GM
has indicated.
Q How should Dealers respond when their customers see the "change oil" light go on?
A When customers are using AMSOIL 25,000-mile oils, AMSOIL
recommends that the oil be continued in service and that the Dealers help
their customers learn how to reset the dashboard light. This is a simple
matter of consulting the owner's manual or contacting the local GM
Dealership. If customers have installed XL-7500, they can feel confident
going 7500 miles or six months, whichever comes first. If the light goes
on at 4500 miles, the same instruction apply as above: reset the light.
Q What if they are using XL-7500 and the light does not go on for
11,000 miles or more?
A If the oil light doesn't come on until after 7,500 miles, the
customer can choose to change the oil and filter or keep going until the
change oil light goes on. AMSOIL XL-7500 is a premium oil that is fully
capable of meeting the needs of GM cars in accordance with their
recommendations. You can always feel safe using the XL-7500 oil until the
light comes on.
Amsoil Action News / July 2004
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