Matt Marshall was stationed at Warren Air Force Base in
Cheyenne, Wyo. until August 2000 when he was transferred
to Buckley Air Force Base in Denver, Colo. Rather than uprooting
his family of four, Marshall decided to make the
commute to Denver from his home in Cheyenne, a round-trip
of 230 miles. Marshall was putting approximately 50,000
miles on his car per year.....
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Amsoil saves money for long distance commuter
1. 4/08
SERVICE LINE
NEWS AND IDEAS FROM AMSOIL
AMSOIL INC. • AMSOIL BUILDING • SUPERIOR, WISCONSIN 54880 • 715-392-7101 • FAX 715-392-5225
AMSOIL Severe Gear Protects Against Thermal Runaway
Modern turbo-diesel pickup trucks V 10
turbo diesel trucks, V-10 Shear Stability
gasoline pickups and sport utility vehicles Many gear lubes are formulated with viscosity
(SUVs) and high-horsepower V-8 trucks boast index (VI) improvers in order to ensure multi-
more towing and payload capacities than ever grade viscosity protection in both hot and cold
E
Energy S
Surcharge
h before. In fact, the market has seen a 34 per- temperatures. VI improver additives keep lubri-
Program Effective cent increase in engine horsepower over the last cants from becoming too thick to flow in cold
decade. In the light truck segment, there has temperatures and too thin to protect in high
May 1 been a 93 percent horsepower increase since temperatures. However, shearing forces within
1981. Differential stress has also increased in equipment can cause these additives to break
Although AMSOIL was forced limousines, conversion vans, and trucks and down and lose viscosity.
to implement a price increase cars with modified, high-performance engines. The SAE CEC L-45-A-99 (KRL) 20-Hour
on March 1, the company has The extreme loads, pressures and tempera- Shear Test is a requirement for all automotive
tures experienced by modern vehicles place in- gear lubes to ensure they do not shear down
since received yet another creased stress on gear lubricants that can lead and fall below minimum viscosity require-
round of large increases in to a serious condition known as thermal run- ments. The graph shows initial oil viscosity and
the costs of raw materials away. As temperatures in the differential climb viscosity following the test, while the shaded
and other materials necessary upward, gear lubricants tend to lose viscosity, area indicates SAE J306 high-temperature vis-
in the production of AMSOIL while extreme loads and pressures can break cosity requirements for SAE 90 gear lubes.
the lubricant film, causing increased metal-to-
synthetic lubricants. Bottles, metal contact and heat. The increased friction
packaging, hard parts, etc. are Viscosity Before and After
and heat, in turn, cause the lubricant to lose KRL 20-Hour Shear Stability Test
all being affected by the trick- further viscosity, which further increases fric- 24
le-down effect from the rising tion and heat. As friction and heat increase, Blue & Red = Viscosity of New Oil
Silver & Orange = Viscosity After KRL Shear Test
21
cost of oil. Freight surcharges lubricant viscosity decreases. As viscosity de-
creases, friction and heat continue to spiral 18
that impact nearly everything
Viscosity (cSt)
SAE 90 Viscosity Range
upward. It is a vicious circle that eventually is 13.5 to < 18.5 cSt
are rising dramatically as well. leads to greatly increased wear and irreparable 15
Due to the volatile and unpre- equipment damage. 12
dictable nature of the market AMSOIL Severe Gear Synthetic Extreme
16.68
16.03
16.07
15.28
22.35
14.63
14.67
13.95
14.08
13.65
15.12
13.52
14.95
13.52
15.13
13.44
14.24
13.31
14.56
13.27
14.21
12.79
14.15
12.55
19.32
11.48
15.39
9.97
at this time, AMSOIL is imple- Pressure (EP) Gear Lubes feature an exclusive 9
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performance additives that provide a highly
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recovering spiraling costs. Ef- protective iron sulfide barrier coating on gear
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surfaces. Severe Gear Synthetic Gear Lubes
l
fective May 1, prices of all
Va
AMSOIL products will reflect effectively protect equipment from thermal
runaway through superior viscosity protection, As seen in the graph, two gear oils failed
an extra 3 to 7 percent sur- viscosity index and shear stability. SAE J306 requirements before the shear test
charge across all programs in
began, exceeding the maximum 18.49 cSt ini-
the U.S. and Puerto Rico. The Viscosity Protection tial viscosity requirements. Viscosity measure-
exact percentage will be deter- Viscosity is the most important property of a ments following the test revealed that seven
mined and announced at the lubricant in its defense against friction and gear lubes sheared down below the minimum
wear. Ideally, the lubricant’s viscosity enables viscosity requirements for SAE J306. AMSOIL
end of April. Until the market it to maintain a constant film strength to keep Severe Gear 75W-90 tested in the proper ini-
stabilizes, the surcharge will moving parts from contacting each other and tial viscosity range and retained the highest
remain in place and may be creating friction, heat and wear. The higher the viscosity of all tested oils after the shear test,
adjusted on a monthly basis. viscosity of a lubricant, the greater protection it indicating its superior ability to protect against
New price lists will be printed provides. AMSOIL Severe Gear Synthetic Gear thermal runaway by maintaining its protec-
Lubes are available in 75W-90, 75W-110, tion qualities in severe, high-shear operating
once the market reaches some 75W-140, SAE 190 and SAE 250 viscosities,
level of stability. conditions.
each providing superior protection through Increased Load
superior film strength.
Oi
ra
& d
In emp
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We
on se
cre er
cti rea
If the Service Line has not reached
as atu
Viscosity Index
Fri Inc
ed re
the appropriate person at your As temperatures rise, gear lubricant viscosity
place of business, please go to the and load-carrying abilities tend to decrease.
commercial/retail account zone A lubricant’s viscosity index (VI) indicates Gear
il
Failure
Th
rO
its ability to maintain its protective viscosity
in
at www.amsoil.com and enter the Break the
ne
ne
Cycle
in
in high-temperature service. The higher a lubri-
rO
Th
name and address for the person
il
cant’s VI, the less its viscosity changes in tem-
who should receive it. perature extremes. Increased Increased
Oil Temperature Friction & Wear
U.S., CANADA & PUERTO RICO TOLL FREE ORDERING: 1-800-777-7094
Hours: 7:00 am to 5:00 pm, Central Time, Monday through Friday.