vtdog wrote:
Just a curiosity question. If AMSOIL is so great, why don't they submit their oil to API testing? All we have is their word, no "independent" test. Sorry, but I don't trust anyone in the oil business.
Hey, VTDog, a little energy expended verifying the misinformation you are putting out. and I wouldn't have to correct your misinformation.
Important Information About AMSOIL and API Licensing:
AMSOIL staffers have recently read some message boards containing misinformation regarding this issue. Here some questions are answered and the API licensing issue is addressed in depth, as well as the issue of warranties.
Q. Why aren't all AMSOIL motor oils API licensed?
A. Some AMSOIL motor oils are API licensed, some are not. If you're concerned about your warranty and feel pressures to use an API licensed oil, even after reading this answer, then the 5W-30 (XLF), 5W-20 (XLM) or 10W-30 (XLT) XL-7500 or our 15W-40 (PCO) API licensed oils should be your choice. If you are looking for an alternative to frequent oil changes or just want the best performing oil for your car, then one of our top tier non-API licensed synthetic oils are for you. Read on, and decide for yourself.
Q. API Licensing - Passenger Cars - What is it?
An API (American Petroleum Institute) license indicates that a specific motor oil formulation has passed the minimum performance standards as defined by a series of laboratory bench, physical, chemical and engine tests. These tests were selected and minimum performance standards were set by the API Lubricants Committee to address specific areas such as engine wear, deposits, fuel economy, emissions, etc. The committee is comprised of representatives from automobile, oil and additive companies. The current specification is SJ/GF-2, and in July 2001 the first use of SL/GF-3 began.
Q. What are the costs?
The cost for running a test program for a single passenger car motor oil formulation is from $125,000 to $300,000, depending on whether or not the formula passes the tests the first time through or requires multiple test runs or formula modifications to achieve a passing average. (That amount goes to $275,000 to $500,000 for a Heavy Duty Diesel licensing program on a specific formula.) Once that testing is complete and the formula has passed all of the minimum requirements, it can be licensed for $825 per year for non-members and $625 per year for members. There is also a small royalty fee per gallon sold for all gallons over one million. The length of time between new specifications is now approximately 2 to 3 years, which does not allow a great deal of time to recover testing costs.
Q. Who licenses what formulas?
Additive companies, such as Lubrizol, Ethyl, Infinium, and Oronite, develop licensed formulas that they offer to oil companies to re-license. It is inexpensive to re-license one of these formulas, and the majority of oil companies choose to do this to avoid the costs associated with testing. This, however, tends to commoditize the market. The same chemistry is being sold under many brand names. Most of the major oil companies do have their own proprietary formulas developed, tested and licensed. All of AMSOIL INC.'s lubricant formulas are unique and proprietary.
Q. What flexibility is there in manufacturing an API licensed formula?
API licensing was originally developed for mineral based oils, and it affords these oils more flexibility than synthetic oils.
Mineral oils comprised of Group I and Group II petroleum basestocks may use a simple program called basestock interchange for added flexibility in manufacturing and purchasing. Interchange means that by completing the proper paperwork and running a few minor engine tests an oil company can choose to buy these petroleum basestocks from many different suppliers. This ensures adequate supply and competitive pricing. However, basestock interchange for Group III and V synthetic basestocks is not allowed. For example, if a formula was tested with an ester (Group V) basestock from a specific supplier, then anyone blending that formula must buy only that supplier's ester. Complete engine testing would need to be performed on the formula using another supplier's ester before an oil company could buy it from that alternative supplier. This additional testing is normally not performed because of the associated costs. This inflexibility makes it very difficult for synthetic lubricant manufacturers to negotiate prices with synthetic basestock suppliers.
There is also something called viscosity grade read-across. Fortunately, this applies to both petroleum and synthetic basestocks although the better cold temperature performance of synthetics makes it more difficult to achieve in some situations. (That's another whole story.) What this means is that if you properly formulate the lubricant for which you have run all of the API tests, there are guidelines that allow you to use that same formula to make 0W-30, 5W-30, 10W-30, etc. viscosity motor oil.
Finally, there is a rule for substitutions in the CMA (Chemical Manufacturers Association) code of practice that allows a small degree of flexibility for all formulas. It allows a company to change the percentages of components in the formula by varying amounts from the original formula with limited testing and paperwork requirements. For example, if the licensed formula used 10% of a certain V.I. improver, you would have the ability to utilize from 9% to 11% of the same V.I. improver for your formula.
This is still the USA and everyone is in the end product responsible for their own decisions.

I have been using Amsoil in all of my internal combustion engines (ICE) since 1985

and have found their standards to be way way higher than the API.

Like most great manufacturers that are not willing to play the standard game in the USA, yhat have a real quality product, they market their own product. This is the USA you can run what ever you want.
