amsoil filter

7/31/2019 Amsoil Filter

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2 MOTOR OIL AND FILTRATION GUIDE

Motor oil is the primary determinantin the durability of an engine. It con-tains two basic components: basestocks and additives.

Base Stocks

The base stock is the bulk of the oil.The base stock lubricates internalmoving parts, removes heat andseals piston rings.

Motor oil base stocks can bemade from: 1) petroleum, 2) chem-ically synthesized materials, 3) acombination of synthetics and petro-leum (called para-synthetic, semi-synthetic or synthetic blend.)

A petroleum base stock consistsof many different oil fractions thatform the final product. Generally,

molecules of a petroleum base stockare long carbon chains that can besensitive to the stress of heat andboil off at relatively low tempera-tures. Engine temperatures breakdown these molecular chains,changing the physical properties(such as viscosity) of the motor oil.

The difference with synthetic basestocks is that molecules are uni-formly shaped, which makes themmore resistant to the stress of heat.Because AMSOIL synthetic motor

oils possess these uniformly-shapedmolecules, they have a low boil offrate. Thus, their physical properties(such as viscosity) do not change.

Additives

The various chemicals that comprisethe additive system in motor oilsfunction to provide anti-wear, anti-foam, corrosion protection, acid neu-tralization, maintenance of viscosity,detergency and dispersancy. Theseare the chemicals that help modernmotor oils meet the increasing

demands of todays high-techengines. Their quality varies widelythroughout the lubrication industry,ranging from a bare minimum insome oils (to comply with certainrequirements) to exceptionally highquality, as in all AMSOIL motor oils.

What a Motor Oil Must Do

Modern motor oil is a highly special-ized product carefully developed byengineers and chemists to perform

many essential functions. A motoroil must:

Permit easy starting Lubricate engine parts and

prevent wear

Reduce friction Protect against rust and

corrosion Keep engine parts clean

Minimize combustionchamber deposits

Cool engine parts Seal combustion pressures

Be nonfoaming

Aid fuel economy.

Improvements in Oil

The quality of motor oil has changeddramatically in the past 30 years,and new demands on lubricants inmodern engine design call for oilsthat meet stringent requirements.Variations in an oils ability to meetthe requirements determine whichservice classification rating andviscosity grade it receives.

Service classifications are deter-mined by the American PetroleumInstitute. Viscosity grades of oils aredetermined by the Society of Auto-motive Engineers. These two organ-

izations have set industry standardsfor motor oils for more than 75 years.

Viscosity

Viscosity, the most important prop-erty of an oil, refers to the oils resist-ance to flow. The viscosity of oilvaries with changes in temperature thinner when hot, thicker whencold. An oil must be able to flow atcold temperatures to lubricate inter-nal moving parts upon starting theengine. It must also remain viscous

or thick enough to protect anengine at high operating tempera-tures. When an oil is used at avariety of temperatures, as it is inmost engines, the change of vis-cosity with temperature variationshould be as small as possible.

The measure of an oils viscositychange is called theViscosity Indexnumber (VI); the higher the number,the smaller the viscosity changewhich means the better the oil pro-

tects the engine. The number doesnot indicate the actual viscosity inhigh and low temperature extremesof the oil. It represents the rate of vis-cosity change with temperaturechange.

Viscosity improvers are viscouschemical compounds called poly-mers or polymeric compounds thatdecrease the rate at which oils

change viscosity with temperature.These viscosity modifiers extend amotor oils operating temperaturerange and make multi-grade or all-season oils possible. However, low-quality viscosity improvers lendthemselves to shearing.

The VI is measured by comparingthe viscosity of the oil at 40C(104F) with its viscosity at 100C(212F). VI can provide insight intoan oils ability to perform at high andlow temperatures.

Petroleum-based motor oils requirethe use of viscosity improvers tomeet the low-temperature require-ments of SAE 0W, 5W or 10W andthe high-temperature requirementsof SAE 30 or heavier oil.

Synthetic-based motor oils havea naturally-high viscosity index andrequire less viscosity improver addi-tive than petroleum oils.

What Is a Motor Oil?

20W-50

15W-40

10W-30

5W-30

-30 -20 -10 0 10 20 30 40 50 60 70 80 90 100

Fahrenheit

0W-30

SAE Viscosity Grade andOutdoor Temperature


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MOTOR OIL AND FILTRATION GUIDE 3

Cold-Temperature Protection

Motor oil must begin to circulateas soon as the engine is started. Ifoil gets cold enough and beginsto solidify, it fails to flow through

the oil screen to the pump at enginestart and causes bearings andother critical parts to fail almostimmediately.

Pour point is an indicator of theability of an oil to flow at cold operat-ing temperatures. It is the lowest tem-perature at which the fluid will flow.

Modern refining techniques removemost of the wax from petroleum oil,but some wax-like molecules remain.These wax-like molecules are solubleat ambient temperatures above freez-ing, but crystallize into a honeycomb-like structure at lower temperaturesand cause oil circulation problems.

Pour point depressants keepwax crystals in the oil microscopi-cally small and prevent them fromjoining together to form the honey-comb-like structure. They lower thetemperature at which oil will pour orflow and are found in most motoroils designed for cold-weather use. Assynthetic motor oils do not containthose wax crystals, they do not requirepour point depressant additives.

Wear Protection

Since one of an oils main functions isto prevent friction and wear,anti-wearadditives are part of the chemicalcomposition of an oil. These additivesprotect engines by bonding to metalsurfaces and forming a protective filmlayer between moving parts that arevulnerable to friction and wear whenan engine is first started and before theoil begins to circulate completely. Whilethis protective film doesnt entirely elim-inate metal-to-metal contact of moving

parts at start-up, it minimizes theeffects of contact.

Oxidation

Because excessive engine heatcauses chemical breakdown of oil,which in turn results in permanentthickening of the oil, oxidationinhibitors work to limit the impactof oxidation. Oil oxidation producesacidic gases and sludge in thecrankcase. These gases combine with

water in the crankcase to corrodeand rust the engine. Corrosionprevention is especially critical indiesel engines.

TBN

An oils ability to neutralize acids isexpressed by its Total BaseNumber (TBN). The greater thenumber, the greater the amount ofacidic by-products the oil can neu-tralize. A high TBN is particularlyimportant in extended drain intervaloils, such as AMSOIL motor oils,because they neutralize acids, andmore of them, for a longer period oftime.

Most oils for diesel engines inNorth America have a TBN between

8 and 12. AMSOIL manufacturesseveral diesel oils with a TBN of 12.

Detergents

In the same way that some chemicalcompounds are used to preventengine rust and corrosion, other chem-icals are added to motor oil to helpprevent combustion by-products fromforming harmful sludge or varnishdeposits. Detergents are added tomotor oil because combustion causescarbon build-up and deposit forma-

tion on the pistons, rings, valves andcylinder walls. Carbon and depositsaffect engine temperature, oil circula-tion, engine performance and fuel effi-ciency. Detergent additives clean theseby-products from the oil. Some com-bustion by-products slip past the pistonrings and end up in the motor oil, whichcan clog the engines oil channels.

Dispersants

While detergents help minimize theamount of combustion by-products,dispersant additives keep those by-

products suspended in a form sofine they minimize deposits. Theykeep the oil in the engine clean whilethey prevent the build-up of carbonor deposits from burned andunburned fuel and even from the oilitself. Eventually, these suspendedparticles are removed by the oil filter.

Anti-Foam

The addition of silicone or other com-pounds in very small amounts makes

most oils adequately foam-resistant.Its important to minimize foaming inmotor oil because tiny air bubbles arewhipped into motor oil by the action ofmany rapidly moving parts, resulting

in a mass of oily froth that has very littleability to lubricate or aid in the coolingof the engine. These compoundsweaken the air bubbles, causing themto collapse almost immediately uponforming, allowing the oil to continue toprotect the engine.

Seal Swell

All motor oils must be compatiblewith the various seal materials usedin engines. Oil must not cause sealsto shrink, crack, degrade or dis-solve. Ideally, oils should cause

seals to expand or swell slightly toensure continued proper sealing.

Heat Dispersal

Another function of motor oil is tocool the engine. The radiator/anti-freeze system is responsible forabout 60 percent of the engine cool-ing that takes place. This cools onlythe upper portion of the engine,including the cylinder heads, cylin-der walls and valves.

The other 40 percent is cooledby the oil. The oil is directed ontohot surfaces, such as the crankshaft,main and connecting rod bearings,the camshaft and its bearings, thetiming gears, the pistons and manyother components in the lower por-tion of the engine that directlydepend on the motor oil for cooling.

Engine heat is created from fric-tion of moving parts and the igni-tion of fuel inside the cylinder. Oilcarries heat away from these hotsurfaces as it flows downward anddissipates heat to the surrounding air

when it reaches the crankcase.Lubricating an engine actually

requires a very small amount ofmotor oil compared to the amountneeded to ensure proper cooling ofthese internal parts.

The oil pump constantly circulatesthe oil to all vital areas of the engine.

Classification Systems

Oil is classified by two systems. Onesystem determines the oils viscosity


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(the SAE grade), and one determinesits performance level, which oil touse in what type of engine (theAPI class).

SAE Grade

The Society of Automotive Engineers(SAE) Viscosity Grade is a systembased on viscosity measures takenfrom a variety of tests. It developed11 distinct motor oil viscosity clas-sifications or grades: SAE 0W, SAE5W, SAE 10W, SAE 15W, SAE 20W,SAE 25W, SAE 20, SAE 30, SAE 40,SAE 50 and SAE 60. These aresingle-grade or single-viscosity oils.

These grades designate the spe-cific ranges that the particular oil

falls into. The W indicates thegrade is suitable for use in cold tem-peratures. (Think of the W asmeaning Winter.) The classifica-tions increase numerically, readilyindicating the difference betweenthem and what the differencemeans. Simply put, the lower thenumber, the lower the temperature atwhich the oil can be used for safeand effective protection. The highernumbers reflect better protection forhigh-heat and high-load situations.

Single-grade oils have a limitedrange of protection and, therefore, alimited number of uses.

With todays well-refined, high vis-cosity index oils, however, an SAE 20oil usually will meet the viscosityrequirements of SAE 20W and vice

versa. Those that do are classifiedSAE 20W-20.

This multi-grade or multi-viscosityability increases an oils usefulness,because it meets the requirementsof two or more classifications.

Examples of multi-viscosity oilsare SAE 5W-30, SAE 10W-30, SAE15W-40 and SAE 20W-50. Thenumber with the W designates theoils properties at low temperatures.

The other number characterizesproperties at high temperatures. Forinstance, a multi-viscosity or multi-grade oil such as 10W-30 meets the

10W criteria when cold and the 30criteria once hot. SAE 10W-30 andSAE 5W-30 are widely usedbecause under all but extremely hotor cold conditions, they are lightenough for easy engine cranking atlow temperatures and heavy enoughto protect at high temperatures.

API Class

The American Petroleum Institute(API) developed a classificationsystem to identify oils formulated tomeet the operating requirements ofvarious engines. The API system hastwo general categories: S-series andC-series.

The S-series service classifica-tion emphasizes oil properties criti-cal to gasoline- or propane-fueledengines. If an oil passes a series oftests in specific engines (APISequence tests), the oil can be soldbearing the applicable API serviceclassification. The classificationsprogress alphabetically as the levelof lubricant performance increases.

Each classification replaces thosebefore it. SL oil may be used in anyengine, unless the engine manufac-turer specifies a non-detergentoil.

SA and SB are non-detergent oilsand are not recommended for useunless specified.

New cars from 1980 to 1989require SF oils, while new cars from1990 to 1993 require SG oils.

New cars beginning with the1994 model year require oils withan API SH performance rating.Beginning with 1997, new carsrequire an API SJ oil. The year 2001brought the introduction of SL oils.SM category is the most recent clas-sification. It was introduced Nov. 30,2004. SM oils are designed to pro-vide improved oxidation resistance,improved deposit protection, betterwear protection and better low-tem-perature performance over the life ofthe oil.

SJ, SL and SM are the current APIclasses. SJ, SL and SM oils arewidely available and ensure thebest engine protection available.

C-series classifications pertainto diesel engines. They are: CA,CB, CC, CD, CD-II, CE, CF, CF-2,CF-4, CG-4, CH-4, CI-4, CI-4 Plusand CJ-4. All are obsolete exceptCF, CF-2, CH-4, CI-4, CI-4 Plus andCJ-4 performance rated oils.

Not all C-series classificationssupersede one another. The currentclassifications, CF and CF-2 arespecified for different applications.

CF for Indirect-Injected DieselEngine Service. Service categoryCF denotes service typical of indirect-

injected diesel engines and otherdiesel engines that use a broadrange of diesel fuels in off-road appli-cations, including diesel fuel withgreater than 0.5 percent sulfur byweight. CF oils may be used in placeof CD oils.

CF-2 for Two-Stroke DieselEngine Service. This service cate-gory is typical of two-stroke enginesrequiring highly effective control overcylinder and ring-face scuffing anddeposits. CF-2 oils may be used

in engines for which CD-II oils arerecommended.

CI-4 Plus for Severe-DutyDiesel Engine Service. CI-4 Plustypically is required in high-speedfour-stroke diesel engines used inheavy-duty on- and off-highwayapplications. CI-4 Plus oils are espe-cially effective in engines designedto meet 2002 exhaust emission stan-dards. CI-4 Plus oils may be used inplace of CD, CE, CF, CF-4, CG-4,CH-4 and CI-4 oils.

CJ-4 for 2007 and newer dieselEngines. CJ-4 was developed toaddress special concerns aboutemission control engines and theiroperation on ultra-low sulfer dieselfuel (ULSD).

These classification systems aimto help motorists choose the right oilfor their needs. The choice dependson the engine, the outdoor tempera-ture and the type of driving the enginemust withstand.

Think of the W in

a motor oils classification

as meaning Winter.


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How Motor OilBecomes

ContaminatedMotor oil becomes unfit forservice after a period ofuse. Two main reasons forthis are the accumulationof contaminants in the oiland chemical changes(additive depletion andoxidation) in the oil itself.

These factors causedeterioration of the oil andprevent it from doing thejob of lubricating and cool-

ing engine parts.

Abrasives

Road Dust and Dirt

Design limitations of aircleaners, some oil fill caps,and crankcase ventilationsystems allow some dustand dirt to enter the engine.Leaks in the intake systemalso permit unfiltered air toenter the engine. However,proper maintenance of the

engine and its accessoriescan minimize the amount ofcontaminants entering thelubrication system andextend engine life.

Metal Particles

Normal wear of parts in anengine produces very smallmetal particles that arepicked up and circulated bythe oil. Particles of road dustand dirt increase the rate ofwear and generate larger

metal particles, that in turnare quite abrasive. These, too, are cir-culated through the engine by the oil.

While oil filters help keep theseparticles at a minimum, they cantremove them entirely.

Combustion By-Products

Water

Combustion produces water vapor,or steam. When engine temperatures

Acids

The combustion process

produces acidic gaseswhich, like water vapor,condense on cylinder wallsat cold engine temperaturesand also find their way intothe crankcase oil. Thesecombine with water tocause rust and corrosion.

Soot and Carbon

Incomplete combustion pro-duces soot, carbon and otherdeposit-forming materials. Anengine running too rich, or

with too much fuel, increasesthe amount of contaminants.In gasoline engines, light-loadand low-speed operationsincrease these combustionby-products more than high-load, high-speed operations.Diesel engines produce moreof these by-products with low-speed, high-load operations.

Dilution

When an engine is startedor running abnormally, some

unburned fuel in liquid formis deposited on cylinderwalls. That means raw fuelleaks past the rings into thecrankcase, where it reducesthe viscosity of the oil. Dilu-tion lowers the film strengthof the oil and increases oilconsumption. Usually this isa minor problem whenengine operation is at high-speed or high-temperatures,but it can be a problem in

vehicles consistently usedfor short-trip driving.While all of the processes by

which a motor oil is contaminatedare not fully defined, the use ofhigh-quality motor oils such asAMSOIL synthetic motor oils allowsmotorists continued protection oftheir engines along with extendeddrain intervals, all while limiting thecontaminants in the oil and pro-longing engine life.

AMSOIL provides top-quality filtersfor every application.

are high, most of the water remainsin vapor form and goes out throughthe exhaust. However, when enginetemperatures are low, such as atstart-up, warm-up and short-tripoperation in low ambient tempera-tures, the water vapor condenses(turns into a liquid) on cylinder wallsand is picked up in the crankcase oil.Here it leads to the formation ofsludge, rust and corrosion.

EaO filter family

Donaldson filter family

WIX filter family


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Engine Wear

Automotive experts agree dirt is thenumber-one cause of engine wear.Analysis by Federal-Mogul Corporationreports that 43.4 percent of all engine

bearing distress is caused by dirt.Engine dirt particles are so small

mere dust specks and an engineis a highly sophisticated piece ofmachinery, crafted from the mostdurable metal alloys. How, then, canthese minute particles bring downsuch a high-tech giant?

The answer lies in the fact thatdirt particles are extremely abra-sive. They consist of razor-like flakesof road dust and airborne grit drawninto the engine through the intake

manifold, as well as manufacturingscarf and wear-metal particles gen-erated inside the engine. These par-ticles are carried by the oil into theprecision clearances between bear-ings and other moving parts. Oncethey work in between these parts,they grind and gouge surfaces,altering clearances and generatingmore abrasive debris. This wearcycle continues, making precisioncomponents sloppy and fatigueduntil they fail altogether.

Filtration is the key to preventingcostly engine repairs caused by dirt.Filtration removes contaminants bytrapping and holding them outsidethe system of oil circulation. In orderfor a filter to be truly effective, it mustbe able to capture contaminants ofall types and sizes. AMSOIL hasdeveloped a complete line of sophis-ticated filtration products designedto offer the best protection availableagainst virtually all harmful enginecontaminants.

Air FiltrationAn engine breathes air to mix withfuel for combustion about 9,000gallons of air for every gallon of gas.All that air contains more than 400tons of suspended dirt in one cubicmile over a typical city, and the con-centration is much higher in ruralareas where travel frequently is overunpaved roads.

The air filter is the first line ofdefense against the abrasive airborne

grit that gets into an engine. In orderto do the job right, the air filter musteffectively filter the dangerous par-ticles without obstructing the vitalflow of air that sustains the engine.

Conventional air filters quicklybecome obstructed with dirt, reduc-ing vital engine air intake, leading topoor engine performance and lowfuel efficiency. They require frequentreplacement.

AMSOIL FiltersLast Longer

When properly cleaned at 25,000-mile intervals,AMSOIL Ea Air Filtersare guaranteed for 100,000 miles orfour years, whichever comes first.The use of exclusive nanofiber syn-thetic media allows AMSOIL Ea AirFilters to provide unsurpassed filtra-tion protection for 25,000 miles orone year between cleanings.

AMSOIL Ea Air Filters are themost efficient filters available tothe auto/light truck market. Ea AirFilters synthetic nanofiber mediaremoves five times more dust thantraditional cellulose filter media aloneand 50 times more dust than wetgauze filter media. AMSOIL EaAir Filters have a much higher

capacity and lower restriction thancompeting filters.

Oil Filtration

Full-flow oil filters install directly intothe line of oil circulation. The full-flow of oil passes through the filteras the oil journeys between the oilpump and the engine.

A full-flow filter must be able toremove and hold contaminants with-out obstructing oil flow to the engine.

Engine Filtration and Maintenance

0 1 2 3 4 5 60

20

40

60

80

100

120

Particle Size (Microns)

Efficienc

y(%)

Media Efficiency Comparison

Nanofibers

Cellulose

Wet Gauze

Most filters on the market com-promise the filtration of finer particlesby using a thin layer of porous filterpaper. These filters have almost noextended cleaning ability since theyhave a low capacity for storing dirt.

These surface-type paper fil-ters quickly become restricted as

debris builds up on the paper sur-face. When this happens, the filterby-pass valve opens and allowsunfiltered oil into the engine.AMSOIL Ea Oil Filters are madewith premium-grade full-synthetic

media. The strictly controlled pro-cessing of this media ensures accu-rate filter construction, and is whatallows Ea Oil Filters to deliver highercapacity and efficiency along withbetter durability.

AMSOIL Ea Oil Filters have sig-nificantly lower restriction thanconventional cellulose media filters.Their small synthetic nanofibers trapsmaller particles and hold more con-taminants, resulting in lower restric-tion. During the engine warm-upperiod, an Ea Oil Filter allows the

oil to flow through the filter at acolder temperature than a typicalcellulose filter. The additional filteringtime decreases engine wear.

By-Pass Oil Filtration

An average full-flow filter traps par-ticles as small as 20 microns. Thefilter cant remove finer particlesbecause the oil must be filteredquickly while removing most of theparticles in the oil.

Normal oil circulation in an internal combus-tion engine.


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analytically clean, reducinglong-term wear and canextend drain intervals.

AMSOIL Ea By-Pass Fil-ters use a two-stage pleatedand layered cellulose/full-syn-

thetic media to provide an effi-ciency rating of 98.7 percent attwo microns.

Reduces Oil Changes

By cleaning the oil so com-pletely, the AMSOIL Ea By-Pass Filter not only prolongsengine life but also the life ofthe oil itself. With the AMSOILEa By-Pass Filter, oil changescan be extended well beyondnormal, in many cases virtually

indefinitely, depending upon the

conditions and severity of use.

Dual Remote:Patented Protection

Available only from AMSOIL, theDual Remote Oil Filtration Systemreplaces conventional full-flow filters,mounting in any convenient loca-tion in the engine, and gives full-flow and by-pass oil filtrationprotection. With Dual Remote, filter

changes are quick, clean and easy.It also increases an engines oilcapacity, helping oil work better, notharder.

Oil Analysis

By analyzing used engine oil, a qual-ified lab can determine the degree ofprotection the oil is delivering andmake certain the oil has not beencontaminated. Oil analysis also candetect impending engine failure.

OIL ANALYZERS INC. providesstate-of-the-art oil analysis testingand is a perfect complement toAMSOIL synthetic motor oils. Thecombination of superior lubricationand reliable oil analysis providespeace of mind over extended drainintervals.

OIL ANALYZERS testing kits(OAI01, OAI02, OAI03) are avail-able from AMSOIL. Oil analysishelps motorists derive the longest lifefrom AMSOIL synthetic motor oil andfrom their engines.

For more information on oil analy-sis and OIL ANALYZERS INC. go towww.oaitesting.com or call (715)392-0222.

Engine dirt may seem toosmall to be harmful, but evenmicroscopic particles are likeboulders inside the precisionclearances between bearings

and other moving engineparts. The result is abrasive

wear that literallychews these

surfaces

apart.

AMSOIL SPIN-ON BY-PASS FILTER

CLEAN OILRETURN LINE

FULL-FLOWFILTER

OIL DRAWN ATOIL PRESSURE

SENDING UNIT

OILCIRCULATINGSYSTEM

CAMSHAFT

BEARINGS

OIL PAN

By-pass oil filtration uses a sec-ondary filter with the purpose of elim-inating nearly all contaminants inengine oil. By-pass filters have highcapacities and eliminate muchsmaller particles than full-flow filters,including those in the two to 20micron range, soot and sludge.

By-pass filters operate by filteringoil on a partial-flow basis. Theydraw approximately 10 percent ofthe oil pumps capacity at any one

time and trap the extremely small,wear-causing contaminants thatfull-flow filters cant remove. By-passfilters have a high pressure differ-ential, causing the oil to flow throughthem very slowly and allowing forthe removal of smaller contaminants.It is called by-pass filtration becausethe oil flows from the by-pass filterback to the sump and by-passesthe engine. This continual processwill eventually make all of the oil

Oil circulation system using an AMSOIL Spin-OnBy-Pass Oil Filter.


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60 percent of engine wear occurs during initial start-ups. AMSOILmotor oils flow freely for fast delivery to critical engine parts.

4. Superior High-Temperature Performance

Reduced friction means cooler operating temperatures.Excessive oil temperatures can be reduced by 20 to 50degrees when using AMSOIL

motor oils.

5. Reduces Deposits onCritical Engine Parts

Engines run cleaner, performbetter.Results of high-temperature test. AMSOIL,on the right, was the only oil that did notshow formation of sludge or deposits.

AMSOIL INC AMSOIL Bldg Superior WI 54880 (715) 392 7101 Printed in U S A Copyright 2008 G52 07/08

Synthetic Motor Oils Outperform Conventional Lubricants1. Superior Wear Protection . . .

Engines Last Longer

In the Four-Ball WearTest (ASTM D 4172)AMSOIL Synthetic10W-30 Motor Oil(ATM) outperformsthe leading syntheticand petroleum motoroils.

2. Improves Fuel Economy

AMSOIL synthetic lubricants have been credited withsignificant fuel economy improvement. In a fuel econ-

omy test with Class 8 trucks, AMSOIL synthetic dieseloil and drivetrain fluids combined to produce up to an8.2 percent improvement.*

*SAE J1321 Joint TMC/SAE Fuel Consumption Test Procedure - Type II.

3. Easier Cold Starts

AMSOIL synthetic motor oils stay fluid at remarkably lowtemperatures.

6. Reduces Oil Consumption

Tests show the superiorthermal stability of AMSOILSynthetic 10W-30 (ATM)Motor Oil withstands thehigher operating temper-atures of todays enginesbetter than conventionalproducts.With AMSOIL, only 4.86%vaporizes, compared to muchhigher percentages with com-peting motor oils. The result :better fuel economy and wearprotection with AMSOIL 10W-30Motor Oil.

7. Lower Cost, More Convenience

Motorists value savings. With AMSOIL Synthetic MotorOils, 25,000-mile/one-year oil changes save time andmoney. With all the added performance benefits of

AMSOIL synthetics, fuel economy, reduced oil con-sumption and better wear protection, your savings addup every mile you are on the road.

8. Jet-AgeTechnology

Only synthetics can stand upto the extreme performancedemands of a jet engine.Every jet engine in the worlduses synthetic engine oil.

9. The First in Synthetics

In 1972, AMSOIL formulated the worlds first AmericanPetroleum Institute certified synthetic motor oil. Withmore than 36 years experience manufacturing andmarketing synthetic motor oils, AMSOIL has been aconsistent leader on the forefront of lubricant technology.

10. Environmental Benefits, Too!

Fewer oil changes means less waste oil, fewer filters, lesspackaging to dispose of, and a better future for our children.

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AMSOIL products and Dealership information areavailable from your local AMSOIL Dealer.

amsoil filter

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