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AMSOIL Synthetic Lubricants are designed and engineered for extended drain interval service. The color the AMSOIL on your dipstick (or ANY oil for that matter) has absolutely no bearing on whether or not the oil is suitable for continued use or if it should be drained and replaced. Use the recommended change intervals for both the oil and engine oil filters as specified by AMSOIL.

It is a common misconception that an oil's color is an indication of how dirty it is. This is absolutely NOT TRUE. The color of an oil does not have any bearing on its lubrication ability. Most oil and especially diesel engine oil will turn black in the first few hours of operation due to contaminates generated by the combustion process and soot particles. The ONLY way to accurately determine an oil's lubricating value or contamination level is through (spectrographic) oil analysis. Oil analysis is common practice used regularly in commercial, industrial and fleet operations and can also be used for passenger cars, light trucks or any other application. In addition oil analysis will also determine the exact pars per million (ppm) of wear metals in your oil which provides an indication of any abnormal wear or specific components that need mechanical inspection in addition to checking for any fuel, water or glycol contamination. *At the end of this section you will find a listing of what oil analysis testing checks for.

The useful life of an engine oil is dependent on several factors such as the quality of the oil, type of fuel, equipment condition, type and operating environment of the equipment and, most important, the type of filtration used. The filtration system and the oil are vital tools for preserving engine life. A highly efficient filter is essential to protect an engine by removing both liquid abrasive contaminants held in suspension by a high quality premium oil such as AMSOIL. When using AMSOIL Synthetic Lubricants for extended drain intervals the AMSOIL Super Duty Filter must be changed at 12,500 miles or 6 months for gas engines and 10,000 miles or 6 months for diesel engines, such as the Ford Powerstroke or Dodge Cummins.

If the AMSOIL Dual-Gard or Dual-Remote By-Pass Filtration Systems are used then the AMSOIL Super Duty full flow engine oil filter must be changed at the same intervals as specified above and the by-pass filter(s) changed as indicated by oil analysis results. The oil does not need to be changed when using by-pass filtration unless oil analysis testing indicates it is necessary.

I t is not uncommon to get several hundred thousand or more miles on the AMSOIL when using by-pass filtration. A Mack Dealership recently performed a teardown inspection on a 1990 Mack E7-400 diesel engine with 630,000 miles total and 409,000 miles without an oil change and its parts were examined by an engine rater from a major oil additive raw materials manufacturer and supplier. The engine showed light to moderate wear throughout, just as an engine in similar service and lubricated with conventional oil changed at 15,000-20,000- mile intervals (as is common with over-the-road semi-trucks) would show. In fact, according to the engine rater the parts examined- cylinder liners, pistons, rings, bearings, valve train components- could have been put right back in the engine and would have continued to provide the good, dependable service they had provided all along- after 409,000 miles without an oil change! If you would like the full detailed report and photographs of this teardown inspection please e-mail us your address and we will drop it in the mail.

* Oil Analysis Report Items Include:

-sample #, date sampled, date tested, unit #, engine make, model, year, oil brand, viscosity grade, sump capacity, make up oil added, type of filtration, last filter change

- component miles, oil miles, last oil change miles

- % presence of gylcol, water, fuel

- viscosity @40 deg. C. and at 100 deg. C.

- % solids

- soot, oxidation %, NOX %, TBN, TAN

- % iron, chromium, lead, copper, tin, aluminum, nickel, silver, manganese, silicon, boron, sodium, magnesium, calcium, barium, phosphorous, zinc, molybdenum, titanium, vanadium and cadmium

- recommendations and additional test results

AMSOIL is the undisputed leader in synthetics.............

Since 1972, AMSOIL Synthetics have proven to be the BEST. AMSOIL also engineers and manufactures Super Duty Oil filters which have a 12,500 mile service life as well as specialized filtration systems for commercial and fleet applications in cars and light, medium and heavy trucks which can filter particles down to less than one micron ( a standard full flow oil filter can only filter to 20-25 microns, and at a reduced efficiency) making oil changes virtually unnecessary and virtually eliminating engine wear. These filters have been proven by millions of miles of over-the road trucks, construction equipment and fleet service.

AMSOIL saves you time and money.
The only 25,000 mile/one- year and 35,000/one- year motor oil in the world.
Exceeds the most stringent performance specifications of all major U.S. and foreign automotive and truck manufacturers.
Provides up to two-times the wear protection of other motor oils.
Increases the life of your vehicle.
Improves performance, fuel economy and efficiency.
Diesel oil and filtration products designed to deliver 1,000,000 miles for over-the-road trucks before engine overhaul.
Used by many national racing teams, fleets, police departments, construction firms and trucking companies.
If you would like FREE information of technical information, catalogs, specifications, retail and wholesale prices, dealer application and other crucial information regarding AMSOIL Ultra Premium Synthetic Motor Oils and Filtration Products plus much, much more please visit the Brochures page here for technical information on your product needs, then e-mail us at oil@cox,net Your name and email will be held strictly confidential.

James Schafer

Independent AMSOIL Dealer

Cleveland, Ohio 44131

Email: oil@cox.net

(216)-741-3225

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