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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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Corvette Expert Recommends AMSOIL

Marc Haibeck of Addison, Illinois, near Chicago, services high performance Corvette ZR-1 engines exclusively at his shop, Haibeck Automotive Technology.

"The ZR-1 was a $26,000 option for a 32 valve engine for 1990 to 1995 Corvettes," said Direct Jobber Greg Finnican, also of the Chicago area. "There were only a little over five thousand of them made. Marc Haibeck is the most specialized person on the ZR-1."

Haibeck owns a 1993 Corvette ZR-1 with the LT5, 375 horsepower engine. "From about 1990 to 1995, this engine was the best performance engine made by Chevy," Haibeck said. "It reigned supreme in the automotive world."

Haibeck adds performance to the engines. "Everyone wants an extra 20 or 30 horsepower," he said. "Amazingly, there are a lot of people who want 100 to 150 additional horsepower."

The cars often are used in drag or road racing. "It's a lot of power," Haibeck said.

He started helping people enhance engine performance in the year 2000 and went full time in 2003.

"I'm the most specialized person in the world that works on these cars full time," he said. In fact, he said, there are only three other technicians that work on those specific engine in the country.

He has earned the respect of this group of elite car owners and his name often appears in online forums as "an opinion that counts," Finnican said. "I know Marc because I have a ZR-1."

Haibeck became interested in AMSOIL 10W-40 Synthetic Motor Oil (AMO) when he learned it is specifically designed to meet the needs of car engines with flat tappets, such as those in the ZR-1 engines. "That applies to the '60s muscle cars as well. The high-performance engines can't use today's oils," he said.

New API specifications do not meet the requirements of the ZR-1 engines. The removal of the EP additives make the oil incompatible with the LT5 engines, Haibeck said. "AMO conforms to the SG specification," he said. "I made a big discovery that as the oil evolves it doesn't necessarily get better; it's simply changing."

Haibeck began recommending AMSOIL 10W-40 Synthetic Motor Oil for the engines because "it is blended specifically to address this technical requirement. AMSOIL solves the problem."

He became a Dealer in September 2007. In his job servicing the engines and upgrading their performance, Haibeck recommends AMSOIL 10W-40 Synthetic Motor Oil to his customers.

"Many of my customers were using Mobil 1," he said. "I expected people to resist the AMSOIL, but I have not had a single person question my recommendation yet."

He said his reputation in the ZR-1 circle is possibly one reason why his customers take his recommendation without question.

He wrote a technical article for a Corvette magazine discussing the importance of using the correct motor oil for the ZR-1 engine and recommended AMSOIL 10W-40 Synthetic Motor Oil.

"My most valuable asset is my reputation, and if I do something like write that article, I have to be sure I'm right," Haibeck said. "The worst thing that can happen as far as I'm concerned is for my integrity to be tarnished."

He respects that AMSOIL motor oils are designed specifically to meet the requirements of the engines.

"I was happy to discover that AMSOIL provides a quality product based on the engineering requirements rather than the marketing requirements of some other motor oils," Haibeck said

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."


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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Personal contact information will only be used to provide requested information or assistance. You will not be enrolled in advertising or marketing programs and your information will not be sold.

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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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