ALASKA XTREME PRODUCTS
It's a fact of life that behavior is strongly influenced by what people
believe, whether true or not. Numerous examples from history bear this out. For example,
sailors were once fearful of sailing outside the sight of land lest they would fall off
the edge of the world. In the early 19th century, the train was considered dangerous
because it was believed that if you moved faster than 25 miles per hour, you would be
traveling too fast to breathe. At a later date, the New York Times warned that electric
light may cause blindness. Microwave ovens, automobiles and airplanes have had equally
vociferous opponents.
Looking back, it's easy to laugh at some of the things people so firmly believed. But
these people were not stupid. They were simply misinformed. In many instances they had
simply drawn conclusions before all the facts were in. How easy it is to make the same
mistake today.
In our own time, synthetic motor oils have been the object of numerous misconceptions held
by the general public. Many people, including some mechanics who ought to know better,
have been misled by persistent myths that need to be addressed.
PARAMETERS OF THE DEBATE
Synthetic lubricants are fuel efficient, extended life lubricants manufactured from select
base stocks and special purpose additives. In contrast to petroleum oils which are pumped
from the earth and refined, synthetics are custom-designed in the laboratory, with
each phase of their molecular construction programmed to produce, in effect, the ideal
lubricant.
In responding to the objections most commonly raised against synthetics it is important to
establish the parameters of the debate. When speaking of synthetic motor oils, this
article is defending the synthetic lubricants which have been formulated to meet the
performance standards set by the American Petroleum Institute (API). (The first such
synthetic motor oil to meet these industry-accepted tests for defining engine oil
properties and performance characteristics was AMSOIL 100% Synthetic 10W-40 in 1972.)
Many people with questions about synthetics haven't known where to turn to get correct
information. Is it super oil or snake oil? Some enthusiasts will swear that synthetics are
capable of raising your specialty car from the dead. On the other hand, the next fellow
asserts that synthetics will send your beloved car to an early grave. Where's the truth in
all this?
In an effort to set the record straight, we've assembled here ten of the more persistent
myths about synthetic motor oils to see how they stack up against the facts.
Myth #1: Synthetic motor oils damage seals.
Untrue. It would be foolhardy for lubricant manufacturers to build a product that
is incompatible with seals. The composition of seals presents problems that both petroleum
oils and synthetics must overcome. Made from elastomers, seals are inherently difficult to
standardize.
Ultimately it is the additive mix in oil that counts. Additives to control seal swell,
shrinkage and hardening are required, whether it be a synthetic or petroleum product that
is being produced.
Myth #2: Synthetics are too thin to stay in the engine.
Untrue. In order for a lubricant to be classified in any SAE grade (10W-30, 10W-40,
etc.) it has to meet certain guidelines with regard to viscosity ("thickness").
For example, it makes no difference whether it's 10W-40 petroleum or 10W-40 synthetic, at
-25 degrees centigrade (-13F) and 100 degrees centigrade (212 degrees F) the oil has to
maintain a standardized viscosity or it can't be rated a 10W-40.
Myth #3: Synthetics cause cars to use more oil.
Untrue. Synthetic motor oils are intended for use in mechanically sound engines,
that is, engines that don't leak. In such engines, oil consumption will actually be
reduced. First, because of the lower volatility of synlubes. Second, because of the better
sealing characteristics between piston rings and cylinder walls. And finally, because of
the superior oxidation stability (i.e. resistance of synthetics against reacting with
oxygen at high temperatures.)
Myth #4: Synthetic lubricants are not compatible with petroleum.
Untrue. The synthesized hydrocarbons, polyalphaolefins, diesters and other
materials that form the base stocks of high-quality name brand synthetics are fully
compatible with petroleum oils. In the old days, some companies used untested ingredients
that were not compatible, causing quality syn-lubes to suffer a bum rap. Fortunately,
those days are long gone.
Compatibility is something to keep in mind, however, whether using petroleum oils or
synthetics. It is usually best to use the same oil for topping off that you have been
running in the engine. That is, it is preferable to not mix your oils, even if it is
Valvoline or Quaker State you are using. The reason is this: the functions of additives
blended for specific characteristics can be offset when oils with different additive
packages are put together. For optimal performance, it is better to use the same oil
throughout.
Myth #5: Synthetic lubricants are not readily available.
Untrue. This may have been the case two decades ago when AMSOIL and Mobil 1 were
the only real choices, but today nearly every major oil company has added a synthetic
product to their lines. This in itself is a testament to the value synthetics offer.
Myth #6: Synthetic lubricants produce sludge.
Untrue. In point of fact, synthetic motor oils are more sludge resistant than their
petroleum counterparts, resisting the effects of high temperature and oxidation. In the
presence of high temperatures, two things happen. First, an oil's lighter ingredients boil
off, making the oil thicker. Second, many of the complex chemicals found naturally in
petroleum base stocks begin to react with each other, forming sludges, gums and varnishes.
One result is a loss of fluidity at low temperatures, slowing the timely flow of oil to
the engine for vital component protection.
Further negative effects of thickened oil include the restriction of oil flow into
critical areas, greater wear and loss of fuel economy.
Because of their higher flash points, and their ability to withstand evaporation loss and
oxidation, synthetics are much more resistant to sludge development.
Two other causes of sludge -- ingested dirt and water dilution -- can be a problem in any
kind of oil, whether petroleum or synthetic. These are problems with the air filtration
system and the cooling system respectively, not the oil.
Myth #7: Synthetics can't be used with catalytic converters or oxygen sensors.
Untrue. There is no difference between synthetic and petroleum oils in regards to
these components. Both synthetic and petroleum motor oils are similar compounds and
neither is damaging to catalytic converters or oxygen sensors.
Myth#8: Synthetics void warranties.
Untrue. No major manufacturer of automobiles specifically bans the use of synthetic
lubricants. In point of fact, increasing numbers of high performance cars are arriving on
showroom floors with synthetic motor oils as factory fill.
New vehicle warranties are based upon the use of oils meeting specific API Service
Classifications (for example, SG/CE). Synthetic lubricants which meet current API Service
requirements are perfectly suited for use in any vehicle without affecting the validity of
the new car warranty.
In point of fact, in the twenty-five years that AMSOIL Synthetic Lubricants have
been used in extended service situations, over billions of miles of actual driving, these
oils have not been faulted once for voiding an automaker's warranty.
Myth #9: Synthetics last forever.
Untrue. Although some experts feel that synthetic base stocks themselves can be
used forever, it is well known that eventually the additives will falter and cause the oil
to require changing. Moisture, fuel dilution and acids (the by-products of combustion)
tend to use up additives in an oil, allowing degradation to occur.
However, by "topping off", additives can be replenished. Through good filtration
and periodic oil analysis, synthetic engine oils protect an engine for lengths of time far
beyond the capability of non-synthetics.
Myth #10: Synthetics are too expensive.
Untrue. Tests and experience have proven that synthetics can greatly extend drain
intervals, provide better fuel economy, reduce engine wear and enable vehicles to operate
with greater reliability. All these elements combine to make synthetic engine oils more
economical than conventional non-synthetics.
In Europe, synthetics have enjoyed increasing acceptance as car buyers look first to
performance and long term value rather than initial price. As more sophisticated
technology places greater demands on today's motor oils, we will no doubt see an
increasing re-evaluation of oil buying habits in this country as well.
CONCLUSIONS
Since their inception, manufacturers of synthetic motor oils have sought to educate the
public about the facts regarding synthetics, and the need for consumers to make their
lubrication purchasing decisions based on quality rather than price. As was the case with
microwave ovens or electric lights, a highly technological improvement must often overcome
a fair amount of public skepticism and consumer inertia before it is embraced by the
general population.
But the word is getting out as a growing number of motorists worldwide experience the
benefits of synthetic lubrication. The wave of the future, in auto lubes, is well under
way.