cool

 

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what viscosity does evryone here use? Im runnin 15w-50 mobil 1 synthetic but i gotta awitch to somthing lighter for winter.</P>


I tried 10w-30 once but it just got roasted<IMG src=smileys/smiley11.gif border="0"></P>


OOh yeah what kind of car do you own amsoil?</P><edited><editID>SlimChriz</editID><editDate>37968.0913194444</editDate></edited>

 

Sorry bout the free samples, I just can't do that quite yet. I currently own a dodge ram hemi, But I'm looking into either an audi or a bmw for a car next.

If yer looking to switch oil , check out our 5w30 or 10w, it will perform for you. Or for extreme cold, check our the 0W

TYPICAL TECHNICAL PROPERTIES

AMSOIL 100% Synthetic 5W-30 Motor Oil (ASL)

Kinematic Viscosity @ 100°C, cSt (ASTM D-445)
11.7

Kinematic Viscosity @ 40°C, cSt (ASTM D-445)
63.4

Viscosity Index (ASTM D-2270)
182

CCS Viscosity @ -25°C, cP (ASTM D 2602)
2555

Borderline Pumping Temperature °C (°F) (ASTM D-3829)
&lt;-40 (-40)

Pour Point °C (°F) (ASTM D 97)
-51 (-60)

Flash Point °C (°F) (ASTM D 92)
230 (446)

Four Ball Wear Test (ASTM D-4172 B: 40 kg, 75°C, 1200 rpm, 1 hour, Scar in mm)
0.35

Noack Volatility, % weight loss (g/100g) (ASTM D-5800)
6.9

High Temperature/High Shear Viscosity cP, 150°C, 1.0 X 106 s.-1, (ASTM D 4683),
Minimum 3.5

Total Base Number
&gt;11.0

<img src=uploads/SyntheticsMan/CACF6_tro_graph.JPG border="0">

 

<img src=uploads/SyntheticsMan/C45Z3_0w30GIF_325px.gif border="0">

 

pretty cool Ill check out your site. Hey one question though all these test are at 150 degrees C* what is that in standard F*</P>


ooh yeah and why is 50W termed performance or race oil?</P>

 

That would be 302* F. Or pretty damn hot.

They use the 50 rating because of the extreme temperatures and pressures a high performance engine puts on an oil. The 50 is the oil's performance rating at high temp. The higher the number the better the oil performs. This rating equates to the viscosity change in that oil at a given temp.

Hope that helps

Kale <img border="0" src=smileys/smiley1.gif border="0">

 

cool </P>


hey sorry to bug yah again but why do somecall itmulti weight oilif I understand your last post correctly the first number ie..15W is the wieght obviously and the second number ie..50 is the performance rateing?.....so whats the significance of the weight?.......and if im correct in my previous assumptions why do I get horible cold start gas mileage on 15W</P>


Yeah I was that kid who always asked "Why" and wasnt satisfied with "Because"<IMG src=smileys/smiley17.gif border="0"></P><edited><editID>SlimChriz</editID><editDate>37969.6268518519</editDate></edited>

 

This is a lot to read, but should help ya out a bunch.

Kale

__________________________________________________

MOTOR OIL AND FILTRATION GUIDE 3
Cold Temperature Protection
Motor oil must begin to circulate
as soon as the engine is started. If
oil gets cold enough and begins
to solidify, it fails to flow through
the oil screen to the pump at engine
start and causes bearings and
other critical parts to fail almost
immediately.
Pour Point is an indicator of the
ability of an oil to flow at cold operating
temperatures. It is the lowest temperature
at which the fluid will flow.
Modern refining techniques remove
most of the wax from petroleum oil,
but some wax-like molecules remain.
These wax-like molecules are soluble
at ambient temperatures above freezing,
but crystallize into a honeycomblike
structure at lower temperatures
and cause oil circulation problems at
low temperatures.
Pour Point Depressants keep
wax crystals in the oil microscopically
small and prevent them from
joining together to form the honeycomb-
like structure. They lower the
temperature at which oil will pour or
flow and are found in most motor
oils designed for cold weather use. As
synthetic motor oils do not contain
those wax crystals, they do not require
pour point depressant additives.

Wear Protection
Since one of an oil’s main functions is
to prevent friction and wear, Anti-wear
Additives are part of the chemical
composition of an oil. These additives
protect engines by bonding to metal
surfaces and forming a protective film
layer between moving parts that are
vulnerable to friction and wear when
an engine is first started and before the
oil begins to circulate completely. While
this protective film doesn’t entirely eliminate
metal to metal contact of moving
parts at start up, it minimizes the
effects of contact.

Oxidation
Because excessive engine heat
causes chemical breakdown of oil,
which in turn results in permanent
thickening of the oil, oxidation
inhibitors work to limit the impact
of oxidation. Oil oxidation produces
acidic gases and sludge in the
crankcase. These gasses combine
with water in the crankcase to corrode
and rust the engine. Corrosion
is especially critical in diesel engines.

TBN
An oil’s ability to neutralize acids is
expressed by its Total Base Number
(TBN). The greater the number, the
greater the amount of acidic byproducts
the oil can neutralize. A high
TBN is particularly important in
extended-drain interval oils, such
as AMSOIL Motor Oils, because they
neutralize acids, and more of them,
for a longer period of time.
Most oils for diesel engines in
North America have a TBN between
8 and 12. AMSOIL manufactures
several diesel oils with a TBN of 12.

Detergents
In the same way that some chemical
compounds are used to prevent
engine rust and corrosion, other chemicals
are added to motor oil to help
prevent combustion by-products from
forming harmful sludge or varnish
deposits. Detergents are added to
motor oil because combustion causes
carbon build-up and deposit formation
on the pistons, rings, valves and
cylinder walls. Carbon and deposits
affect engine temperature, oil circulation,
engine performance and fuel effi-
ciency. Detergent additives clean these
by-products from the oil. Some combustion
by-products slip past the piston
rings and end up in the motor oil, which
can clog the engine’s oil channels.

Dispersants
While detergents help minimize the
amount of combustion by-products,
dispersant additives keep those byproducts
suspended in a form so
fine they minimize deposits. They
keep the oil in the engine clean while
they prevent the build-up of carbon
or deposits from burned and
unburned fuel and even from the oil
itself. Eventually, these suspended
particles are removed by the oil filter.

Foam
The addition of silicone or other compounds
in very small amounts makes
most oils adequately foam-resistant.
It’s important to minimize foaming in
motor oil because tiny air bubbles are
whipped into motor oil by the action of
many rapidly moving parts, resulting
in a mass of oily froth that has very little
ability to lubricate or aid in the cooling
of the engine. These compounds
weaken the air bubbles, causing them
to collapse almost immediately upon
forming, allowing the oil to continue to
protect the engine.

Seal Swell
All motor oils must be compatible
with the various seal materials used
in engines. Oil must not cause seals
to shrink, crack, degrade or dissolve.
Ideally, oils should cause
seals to expand or “swell” slightly to
ensure continued proper sealing.

Heat Dispersal
Another function of motor oil is to
cool the engine. The radiator/antifreeze
system is responsible for
about 60 percent of the engine cooling
that takes place. This cools only
the upper portion of the engine,
including the cylinder heads, cylinder
walls and valves.
The other 40 percent is cooled
by the oil. The oil is directed onto
hot surfaces, such as the crankshaft,
main and connecting rod bearings,
the camshaft and its bearings, the
timing gears, the pistons and many
other components in the lower portion
of the engine that directly
depend on the motor oil for cooling.
Engine heat is created from friction
of moving parts and the ignition
of fuel inside the cylinder. Oil
carries heat away from these hot
surfaces as it flows downward and
dissipates heat to the surrounding air
when it reaches the crankcase.
Lubricating an engine actually
requires a very small amount of
motor oil compared to the amount
need to ensure proper cooling of
these internal parts.
The oil pump constantly circulates
the oil to all vital areas of the engine.

Classification Systems
Oil is classified by two systems. One
system determine’s the oil’s viscosity
(the SAE grade), and one deter-
4 MOTOR OIL AND FILTRATION GUIDE
mines its performance level, which
oil to use in what type of engine (the
API class).
SAE Grade
The Society of Automotive Engineers
(SAE) Viscosity Grade is a system
based on viscosity measures taken
from a variety of tests. It developed
11 distinct motor oil viscosity classifications
or grades: SAE 0W, SAE
5W, SAE 10W, SAE 15W, SAE 20W,
SAE 25W, SAE 20, SAE 30, SAE 40,
SAE 50 and SAE 60. These are
single grade or single viscosity oils.
These grades designate the specific
ranges that the particular oil
falls into. The “W” indicates the
grade is suitable for use in cold temperatures.
(Think of the “W” as
meaning “Winter”.) The classifications
increase numerically, readily
indicating the difference between
them and what the difference
means. Simply put, the lower the
number, the lower the temperature at
which the oil can be used for safe
and effective protection. The higher
numbers reflect better protection for
high heat and high load situations.
SAE

 

WOW thanks man I guess I couldnt ask for a more depth explanation<IMG src=smileys/smiley20.gif border="0">