Forums
New posts
Search forums
What's new
New posts
New media
New media comments
Latest activity
Classifieds
Media
New media
New comments
Search media
Log in
Register
What's New?
Search
Search
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Navigation
Install the app
Install
More Options
Advertise with us
Contact Us
Close Menu
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Forums
The Water Cooler
General Discussion
Amsoil Motor Oil
Search titles only
By:
Reply to Thread
This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.
Message
<blockquote data-quote="swampratt" data-source="post: 3931440" data-attributes="member: 15054"><p>Now that above test is an evaporation test.</p><p>Shows nothing in the form of wear or shear or foaming.</p><p>Just heat it up and weigh what you have left.</p><p>Do that with a brick and I bet it has even lower numbers.</p><p>Not saying that those good performing oils are not good at that.</p><p></p><p>The <strong>Noack volatility test</strong>, named after Kurt Noack,<a href="https://en.wikipedia.org/wiki/Noack_volatility_test#cite_note-1" target="_blank">[1]</a> determines the <a href="https://en.wikipedia.org/wiki/Evaporation" target="_blank">evaporation</a> loss of <a href="https://en.wikipedia.org/wiki/Lubricants" target="_blank">lubricants</a> in high-temperature service. This test is standardized as <strong>ASTM D5800</strong>.<a href="https://en.wikipedia.org/wiki/Noack_volatility_test#cite_note-2" target="_blank">[2]</a></p><p></p><p>In this test, a sample is heated at 250 °C for 60 minutes with a constant flow of air over it. The weight fraction lost is the result for the Noack volatility test.</p><p></p><p>As the lighter hydrocarbon fraction of motor oils evaporate, the viscosity of the remaining oil increases, contributing to poor circulation, reduced <a href="https://en.wikipedia.org/wiki/Fuel_economy_in_automobiles" target="_blank">fuel economy</a>, increased oil consumption, wear and <a href="https://en.wikipedia.org/wiki/Tail-pipe_emissions" target="_blank">tail-pipe emissions</a>.</p></blockquote><p></p>
[QUOTE="swampratt, post: 3931440, member: 15054"] Now that above test is an evaporation test. Shows nothing in the form of wear or shear or foaming. Just heat it up and weigh what you have left. Do that with a brick and I bet it has even lower numbers. Not saying that those good performing oils are not good at that. The [B]Noack volatility test[/B], named after Kurt Noack,[URL='https://en.wikipedia.org/wiki/Noack_volatility_test#cite_note-1'][1][/URL] determines the [URL='https://en.wikipedia.org/wiki/Evaporation']evaporation[/URL] loss of [URL='https://en.wikipedia.org/wiki/Lubricants']lubricants[/URL] in high-temperature service. This test is standardized as [B]ASTM D5800[/B].[URL='https://en.wikipedia.org/wiki/Noack_volatility_test#cite_note-2'][2][/URL] In this test, a sample is heated at 250 °C for 60 minutes with a constant flow of air over it. The weight fraction lost is the result for the Noack volatility test. As the lighter hydrocarbon fraction of motor oils evaporate, the viscosity of the remaining oil increases, contributing to poor circulation, reduced [URL='https://en.wikipedia.org/wiki/Fuel_economy_in_automobiles']fuel economy[/URL], increased oil consumption, wear and [URL='https://en.wikipedia.org/wiki/Tail-pipe_emissions']tail-pipe emissions[/URL]. [/QUOTE]
Insert Quotes…
Verification
Post Reply
Forums
The Water Cooler
General Discussion
Amsoil Motor Oil
Search titles only
By:
Top
Bottom
