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What is the Noack Volatility Test?

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There are Four Basic Types of Engine Wear

Fortunately, all four can be controlled with quality lubrication.

TECH TALK
Dan Peterson, Vice President, AMSOIL Technical Development

Dan Peterson
Vice President,
Technical Development

In 2011, the average cost of a new vehicle increased to almost $30,000, and the average cost of gasoline rose to $3.52 per gallon, up from $2.78 per gallon in 2010 and $2.35 per gallon in 2009. Considering the sharp increase in the cost of ownership, it's no wonder people are hanging onto their vehicles longer than they have in the past. According to Consumer Reports, the average vehicle age in 2008 was five years; today, the average age of vehicles on the road is nine years. As more people look to keep their vehicles longer, more of them learn that, without proper maintenance, vehicles might not last as long as they'd like. It is up to drivers to protect their investments.

There is little more detrimental to your vehicle's engine than wear, and lubricating oils are your first line of defense. Numerous factors contribute to engine wear, but all can be categorized as one of the following four basic wear mechanisms: abrasive, corrosive, adhesive and fatigue.

Abrasive wear is caused by foreign particles entering the engine, most commonly soot and dirt. Once inside the engine these particles become trapped between moving parts - the piston and cylinder, for example - and grind against their metal surfaces. Wear particles act as sandpaper, continuously rubbing and wearing away metal surfaces by rupturing the oil film separatIng moving engine parts, resulting in particle-to-metal contact. This contact creates friction and reduces energy efficiency.

Abrasive wear commonly occurs when dirt or other contaminants enter the engine through the air intake system. These contaminants cause excessive wear on rings, pistons and cylinders. Increased cylinder and ring wear can cause blow-by, which decreases compression and causes loss of power. An efficient filtration system can help prevent abrasive wear by blocking contaminants that would otherwise enter the oil sump and find their way into the system.

Corrosive wear is the result of rubbing action on a metal surface in conjunction with chemical attack. Combustion byproducts introduce acids into the oil sump. If unaddressed, these acids can build up in the system and oxidize or corrode the surface of sensitive areas, including lead- and copper-lined bearings and other soft yellow-metal surfaces. As the surfaces begin to corrode, pieces of oxidized metal break free and become wear particles in the system.

The most commonly recognized mechanism is adhesive wear, which occurs when metal surfaces come in contact under conditions of high load, speed or temperature. Surface irregularities, called asperities, touch and weld momentarily, then break off as the surfaces separate. The load applied to the two points of contact is so high that they bend and adhere to one another. Rough metal surfaces with larger microscopic hills and valleys are more susceptible to this type of wear. Adhesive wear can result In scuffing, scoring or seizure.

Fatigue wear originates from situations where the lubricating film is in place, but recurring stress like vibration or shock-loading causes cracks or pits over time. This is a common type of wear found in equipment that frequently starts and stops or changes speeds. Fatigue wear can develop in rolling element bearings as they pass over a stressed area repeatedly and, ultimately, develop cracks that release small bits of metal over time, leaving holes or pits in the surface. These holes or pits grow and connect, resulting in large losses of surface metal and catastrophic damage.

Regardless of equipment type, bearings, gears and cylinders are susceptible to wear, and thus require high-quality lubricant protection. Choosing the proper viscosity for your oil will aid in wear protection by reducing the likelihood of metal-to-metal contact. A full-synthetic base oil provides a naturally higher viscosity index for improved shear stability, again helping to reduce wear by maintaining proper viscosity. Oil film strength is also a key wear-protection property. Adequate film strength provides a lubricant barrier between moving parts, ensuring friction is greatly reduced.

AMSOIL Dealers' ability to identify the symptoms of each mechanism is important in order to diagnose both mechanical and lubrication issues. AMSOIL synthetic lubricants offer outstanding wear prevention to help vehicles last longer, which is something an increasing number of consumers are interested in. Published, AMSOIL Magazine 02/12.


AMSOIL Signature Series Synthetic Motor Oil

AMSOIL Signature Series Synthetic Motor Oil

AMSOIL Signature Series Synthetic Motor Oils are formulated to meet the latest API SN Resource Conserving and ILSAC GF-5 industry specifications. AMSOIL Signature Series Oils include 0W-20, 0W-30, 5W-30 and 10W-30 and represent the very best motor oils AMSOIL has to offer, allowing motorists to take advantage of maximum extended drain intervals. AMSOIL Signature Series Synthetic Motor Oils are recommended for drain intervals of up to 25,000 miles/one year, whichever comes first (15,000 miles/one year in severe service conditions).

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Premium AMSOIL Synthetic Motor Oils offer the longest drain intervals on the market, unsurpassed protection and performance that effectively extends equipment life and improved fuel economy, saving customers money at the pump and reducing the nation's dependence on foreign oil.


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AMSOIL Synthetic Diesel Oil Articles and Testimonials


"AMSOIL INC. warrants that the use of its lubricants will not cause mechanical damage to any mechanically sound equipment when AMSOIL INC. products are used in full compliance with the company's recommendations and instructions."


FULL WARRANTY


AMSOIL synthetic motor oils are formulated to surpass engine test specifications, offering protection far greater than competing motor oils for extended drain intervals. Most synthetic oil manufacturers make no claim to extended drain intervals, deferring to the maintenance schedule provided by the vehicle manufacturer. With its unparalleled oil and warranty program, AMSOIL offers consumers unprecedented protection and economics.


Another AMSOIL First

More than 20 years ago, AMSOIL began using the NOACK volatility test as a comparison tool and measurement of quality. Back then, nearly every oil tested side-by-side with AMSOIL synthetic motor oils failed, and those that passed barely squeaked by. Other oil companies paid no attention to NOACK results until Ford Motor Company made it a requirement for service fill oils, validating what AMSOIL had said all along.


THE NOACK Volatility Test
The NOACK Volatility Test determines the evaporation loss of lubricants in high temperature service. The more motor oils vaporize, the thicker and heavier they become, contributing to poor circulation, reduced fuel economy and increased oil consumption, wear and emissions. AMSOIL Synthetic Motor Oil resists high temperature volatization better than other motor oils. AMSOIL Synthetic Motor Oil maintains peak fuel efficiency and reduces oil consumption and emissions.

AMSOIL Now An ISO Certified Manufacturer
AMSOIL recently received ISO 9001:2000 certification of our Quality Management System (QMS). NSF International Strategic Registrations is the registrar that has verified our QMS meets the requirements of the ISO 9001:2000 standard, the most widely utilized quality standard throughout the world for quality management systems. ISO standards are used by over 300,000 companies worldwide setting rigorous standards for businesses, government and industry.

ISO 9001:2000 is applicable to any manufacturing and service organization providing a framework for system development that focuses on the customer, quality system performance and ongoing improvement. AMSOIL received ISO 9001:2000 registration under the scope: synthetic lubricants blending, packaging, and other fulfillment directly associated with lubricant product.

The ISO certification puts AMSOIL in line with some of the most efficient companies in the world. It is further assurance that the products and services AMSOIL provides will continue to maintain the high level of quality the company always demanded.


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