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8.2% More MPG with AMSOIL Synthetic Lubricants
Replacing popular conventional engine and driveline lubricants with AMSOIL synthetic lubricants in Class 8 diesel-fueled vehicles increases fuel mileage up to 8.2% according to the findings of an independent test facility.

Fuel accounts for roughly 37 percent of Class 8 truck operating expenses, and reducing fuel expenses is a top priority for truck operators.

AMSOIL is the leader in the race to develop fuel efficient low-viscosity lubricants for trucking and other heavy-duty diesel applications. Independent laboratory testing shows AMSOIL Series 3000 Synthetic 5W-30 Heavy Duty Diesel Oil in the engine and AMSOIL synthetics in the drivetrain provide up to 8.2 percent more miles-per-gallon than other popular lubricants provide.

Introduction
At the request of AMSOIL INC., an independent research institute conducted a month-long test com-paring the fuel consumption of Class 8 diesel trucks equipped with AMSOIL synthetic lubricants to Class 8 diesel trucks equipped with conventional lubricants.

The research institute used the SAE J1321 Joint TMC/SAE Fuel Consumption Test Procedure-Type II, an industry standard test procedure for comparing in-service fuel consumption of a vehicle operated under two conditions, one with the control lubricants in place, the other with the test lubricants in place.

Vehicles and Route
The three test and one control vehicles were 1995 International Model 9200 truck-tractors with Cummins M-11 engines (rated at 350 hp at 1600 rpm), Fuller RTXF 14710B transmissions, Eaton Model DS/RS 404 drive axles (3.90 ratio), 11R-24.5 low-profile tires and new oil and air filters. All four vehicles had been operated between 250,000 and 285,000 miles prior to the study.

The trucks were equipped with auxiliary weigh fuel tanks and quick disconnect couplings to facilitate accurate data gathering. Each truck pulled a 45-foot long flatbed trailer equipped with 11R-24.5 low-profile tires and loaded with concrete blocks so that the gross vehicle weight (GVW) of each vehicle was 75,550 ±100 lbs.

The test route represented typical long-haul interstate highway operations, with asphalt road surfaces and generally flat terrain. The low traffic density route covered a total of 40 miles with a 20-mile southbound segment and the return north-bound segment. Fuel consumption was measured separately for each direction.

Lubricants and Fuels
The control lubricants were Shell Rotella T 15W-40 for the engines, Quaker State SAE 90 for the transmissions and Citco 85W-140 for the drive axles. The control truck used the control lubricants for all driving segments and the test trucks used the control lubricants for their baseline segments.

The test lubricants were AMSOIL Series 3000 Synthetic 5W-30 Heavy Duty Diesel Oil for the engines, AMSOIL Series 2000 Synthetic 20W-50 Racing Oil for the transmissions and AMSOIL Series 2000 Synthetic 75W-90 Gear Lube for the drive axles. The test vehicles used the test lubricants for their test segments.

All vehicles used Exxon No. 2 diesel fuel dispensed from the same storage tank for all driving segments.

Procedure
Each test vehicle ran a baseline segment, in which the truck was equipped with the control lubricants, and three test segments, in which it was equipped with test lubricants. The control vehicle concurrently ran each driving segment using control lubricants.

Conditions including speed, tire pressure, headlight and fan use and window openings were held constant between all vehicles in each driving segment. Finally, testing proceeded only if wind direction, wind speed and temperature were within test parameters.

Results
The weight of fuel consumed by each test vehicle and the weight of fuel consumed by the control vehicle in each driving segment were used to determine the percentage of fuel saved and the percentage fuel efficiency improvement obtained by the test lubricants. Results outside 2 percent of the norm were discarded.

Findings
The vehicles equipped with AMSOIL synthetic lubricants in the engines, transmissions and drive axles demonstrated up to an 8.2 percent increase in miles per gallon (mpg) over the mpg obtained by the vehicles equipped with the control lubricants.

Discussion
Test conditions were held close to ideal for maximum fuel economy. In many instances of less-than-ideal conditions, the synthetic test lubricants would have provided even more fuel economy improvement. For example, synthetics' superior cold temperature fluidity provides a larger proportion of fuel savings in cold operating conditions.

Additionally, while the present study did not include analysis of wear control, wear control is an important issue with low viscosity lubricants and one fully addressed by AMSOIL through additional testing.

Traditionally, the benefit of improved fuel economy provided by low viscosity lubricants is offset by a penalty in wear control. Such is not the case with Series 2000 and 3000 lubricants, as evidenced by Four-Ball Wear testing conducted by an independent laboratory (results shown on product labels) and a growing body of demonstration and on-road data.

For example, an ongoing fleet demonstration is providing evidence of the excellent wear control of Series 3000. Since January 1996, AMSOIL and a northern tier trucking fleet have been conducting a demonstration using Series 3000 in the 1996 Cummins N-14 ESP3 engines of five 1996 Kenworth class 8 trucks.

The trucks traveled 125,000 miles with-out an oil change and the rate of wear metal generation found in used Series 3000 samples was lower than that found in used control oil, Pennzoil Long Life 15W-40, which is changed at 20,000-mile intervals.

Additionally, the viscometrics of the AMSOIL fluids provide a wear control benefit in cold temperature applications since low viscosity fluids flow more freely in cold temperatures than high viscosity fluids do. Oils that flow easily in cold temperatures provide faster post-startup wear protection in cold engines than do less fluid oils. They also provide easier starting and reduced battery drain.

Finally, AMSOIL product users are protected by the AMSOIL warranty, which, unlike warranties offered by other oil companies, is not limited by time or mileage and does not require user registration and approval.

Conclusion
AMSOIL synthetic engine, transmission and drive axle lubricants provide a safe and effective means to significantly increase class 8 truck fuel economy.

AMSOIL Series 3000 Synthetic 5W-30 Heavy Duty Diesel Motor Oil provides better wear protection than these popular high viscosity diesel oils. In fact, independent testing showed the high-viscosity oils tested produced wear scars up to 45 percent larger than that of Series 3000.

What Does a Savings of 8.2% Mean?
Imagine a fleet of 100 class 8 vehicles running an average 120,000 miles per year at an average 6.5 mpg with diesel fuel at $1.35 a gallon. The fleet spends $2,492,308 on fuel annually. Now imagine the fleet uses AMSOIL products and improves its miles-per-gallon by 8.2 percent. The fleet now spends $2,303,427 on fuel annually.

That's a savings of $188,881! That money could buy a year's worth of AMSOIL synthetic lubricants for the fleet plus a year's fuel for 3 to 6 trucks - with cash left over!

CUMMINS M-11 ENGINE
Sump capacity: 9 gallons

FULLER RTXF-14710B TRANSMISSION
Sump: 25.5 pints (3.2 gal)
One fluid fill

EATON MODEL DS 404 DRIVE AXLES
Sump: 63 pints (7.9 gal)
One fluid fill

After deducting the annual AMSOIL lube cost from $188,881, the fleet still has between $68,277 and $150,852 - enough to buy a year's worth of fuel for 3 to 6 trucks - with cash left over!

Extended Drains Save You Even More!

See for yourself! A Virginia owner-operator used AMSOIL Synthetic 15W-40 Motor Oil for 409,000 miles without an oil drain! His engine was as wear-free as engines in comparable service treated to TWENTY TIMES the oil changes, according to the findings of a certified, independent engine rater.

Extend your drain intervals! Oil Analyzers Inc. offers the state-of-the-art oil analysis essential to any program of extended oil drain intervals.

| See More AMSOIL Performance Tests |

Why Motor Oil Deteriorates

It is common knowledge that, at some point, engine oil must be changed. It's something that is preached relentlessly to vehicle owners by vehicle manufacturers, quick lubes and oil companies. But consumers are widely unaware of what exactly makes oil changes necessary.

Many factors contribute to a motor oil's demise, but it is essentially the accumulation of contaminants in the oil and chemical changes in the oil itself that make a motor unfit for further service. With time, it is inevitable that the oil will be contaminated by dirt or sludge, or succumb to the extreme pressures or temperatures found inside an engine. AMSOIL Motor Oils are formulated with the industry's most advanced synthetic base stocks and additive packages to combat the forces that deteriorate conventional oils. (read more)

What is the NOACK Volatility Test?
Volatization is a term used to describe what happens to a fluid as it is heated to the point it begins to "boil off." Upon reaching a certain temperature, oil will begin to lose some of its lighter weight molecules as they "boil off" and leave heavier weight molecules behind. Not only does this cause higher oil consumption, this process can also cause increased viscosity making the oil more difficult to circulate through the lubrication system. (read more)

Quality Takes Priority at AMSOIL

The AMSOIL chemical laboratory plays an important role in the daily operations at AMSOIL headquarters. The lab fulfills tech service requests, performs competitor testing and comparisons, and works on the research and development of products at AMSOIL. One of the most important jobs at the lab is quality control. AMSOIL is known for formulating high-quality products and the AMSOIL chemists ensure that everything coming in and going out meets AMSOIL standards. How do they do it? (read more)

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.

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.

Which AMSOIL Products Are Recommended For Your Car or Truck?
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