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Motor Oil Test and Comparison

AMSOIL vs. Mobil 1

409,000-Miles Without An Oil Change

AMSOIL Excels in API Sequence IIIF Performance Test

Motor Oil Performance Tests & Comparisons

Temperature Extremes Call For Superior Motor Oils

Why Harley-Davidson Owners Choose AMSOIL

Synthetic Motorcycle Oil & Harley-Davidson Warranty Issues

AMSOIL Synthetic Gear Lube Outperforms Valvoline Gear Lube

8.2% More MPG With AMSOIL Synthetic Lubricants

AMSOIL Proves Superior In Clark County Field Test

AMSOIL Series 3000 Synthetic 5W-30 Heavy Duty Diesel Oil is Correct Choice for Jeff Foster Trucking

AMSOIL Products Improve Efficiency and Reduce Operating Costs for Gerlach Trucking

What is the Noack Volatility Test?

What is the Four-Ball Wear Test?

What is TBN?

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Dodge Dually Surpasses 633,000 Miles With AMSOIL Lubes

Dodge Workhorse - 2003 Dodge Ram 3500 Dually with Cummins 5.9L High-Output Turbo Diesel
DODGE WORKHORSE - Brad Walthour bought this 2003 Dodge truck new and uses it daily to haul heavy loads to 48 states. AMSOIL products save him hundreds of dollars each year, as well as provide added wear protection for his hard-working dually.

Brad Walthour of Sunbury, Ohio speaks from experience when he talks about the qualities and benefits of AMSOIL lubes and filters.

Walthour became an AMSOIL Dealer several years ago when the recommendations of a friend saved him the cost of an engine rebuild in his 2003 Dodge Ram 3500 dually with the Cummins 5.9L high-output turbo diesel engine and six-speed manual transmission with a 4:10 gear ratio.

"At approximately 200,000 miles I noticed a strong fuel odor and light gray smoke emitting from the tailpipe while idling," Walthour said. "I could smoke out six guys on Harleys at a red light; not exactly a good situation to put yourself in."

After taking the truck to three different shops, spending money on parts and getting recommendations that included an expensive engine rebuild, Walthour's friend, Walt Conrad, suggested AMSOIL products.

Conrad, an AMSOIL user of more than 20 years, recommended AMSOIL Diesel Concentrate and AMSOIL Cetane Boost. "He was adamant about this, a genuine believer in AMSOIL products, and his recommendation was certainly a lot less expensive," Walthour said.

The dually has the original 35 gallon fuel tank with an additional 80 gallon fuel tank that Walthour installed in the bed behind the cab.

"At 222,000 miles I began using those two products in my truck at every other fuel fill, and I installed AMSOIL 15W-40 Heavy Duty Diesel and Marine Synthetic Motor Oil and an AMSOIL EAO80 Oil Filter," he said. "The smoking began to dissipate and within 10,000 miles, or approximately one month, the smoking at idle was eliminated by about 85 percent. What a relief."

At 325,000 miles his mechanic replaced the fuel pressure relief valve. "Apparently, some leftover fuel in the old valve was not burning off completely. It was going straight out the tailpipe, causing the odor and smoke. Replacing that part eliminated the other 15 percent of the smoke and it hasn't smoked once since. That was more than 300,000 miles ago."

2003 Dodge Ram 3500 Dually with Cummins 5.9L High-Output Turbo DieselThe truck is the workhorse for his day job delivering new recreational vehicles, campers, autos, boats and horse trailers to dealerships in 48 states. "They range anywhere from 6,000 pounds to 14,500 pounds gross vehicle weight," Walthour said. He often hauls in harsh weather conditions.

"I rely solely on AMSOIL products to protect my investment in a wide range of outside temperatures on various and challenging terrain," Walthour said. He uses AMSOIL Cold Flow Improver during the cold months. "The fuel has never gelled," he said. "The engine and transmission have never been dismantled, rebuilt or replaced." He averages 26 mpg an 55 miles per hour when he's not towing anything and 11.5 to 14 mpg when towing. He calculates his oil change savings with AMSOIL products to be $300 a year, which doesn't include the added protection against wear and extreme temperatures.

"I change the oil every four months or 40,000 miles at a cost of $100 instead of every 10,000 miles at a cost of $50," Walthour said. "The AMSOIL Ea Oil Filter is changed every 20,000 miles. Every oil analysis result has had the same notation, 'oil is suitable for continued use.' I'm sure many of my trouble free miles are because of AMSOIL products."


Why is AMSOIL Synthetic Oil Better?

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AMSOIL Product Information

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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.


"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.


AMSOIL Product Information

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Which AMSOIL Products Are Recommended For Your Car or Truck?
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What Drain Interval Does AMSOIL Recommended For Your Vehicle?
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