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Why AMSOIL Synthetic Motor Oil?

There is a reason AMSOIL is 1st in Synthetic's

Amsoil Logo, The First in Synthetics
When it comes to deciding what synthetic motor oil is right for your equipment we have trained experts in synthetic motor oil and lubrication to help you get it right.

People often ask "what is the difference between the different automotive oils sold by AMSOIL?" 

The following list provides the various categories of oil and how the American Petroleum Institute (API) rates them.

Group I: Fractionally distilled petroleum that is further refined with a solvent extraction purpose to help with oxidation resistance and to remove wax.

Group II: Fractionally distilled base stocks then hydrocracked to further refine the purity.

Group III: Hydrocracked further than group II base stocks increasing the viscosity index higher with a lower wax content.

Group IV: Polyalphaolefins (PAO's). chemically engineered creating a true "synthetic oil base stock"

Group V: Base stocks that do not fall into group I-IV

When you add it all up Group 1 and II are typically considered mineral oils with Group II having an additional step of hydro cracking for added purity.

Group III: Considered synthetic oil by API in the USA but not in Germany and Japan. Why? Look back at the Group descriptions Group III base stock is the same as group II but hydrocracked or in plain English refined one-step further, thus it is still a mineral oil just further refined. Most of the synthetic oils sold in the US are actually Group III Synthetics oils.

AMSOIL Synthetic Motor oil is pure Synthetic motor oil made from a proprietary blend for performance. AMSOIL Synthetic motor oil uses a proprietary base stock, developed by the AMSOIL's engineering staff to meet or exceed all test requirements in the demanding environment it is required to perform in. AMSOIL meets or exceeds the quality of Group IV base stocks giving them superior mechanical properties over a very wide temperature range as reported on independent test reports. AMSOIL Synthetic motor oil's high viscosity index requires little to no viscosity improvers, which are the most vulnerable to thermal and mechanical degradation over the life of the oil making it possible for AMSOIL to provide superior protection.

AMSOIL Synthetic motor oil is designed to reduce the wear and tear on mechanical components when compared to petroleum lubrication products while resisting oxidation and the formation of sludge, which is a killer in today's engines due to the heat buildup. As a result, AMSOIL Synthetic motor oil is engineered and warranted for up to 1 year or 25,000 miles for the Premier Signature Series product line.

Motor oil test comparisons continually prove the superior quality of AMSOIL synthetic motor oil.

So the answer to the question "why Synthetic motor oil?" is very simple, AMSOIL Synthetic motor oil is superior to petroleum motor oil, the independent tests prove the facts.

One last point, many people refer to AMSOIL as AMZOIL or AMS OIL, actually AMSOIL started out as AMZOIL but changed the name due to a name dispute way back when it first came to market. Although when you say it is sounds like AMZOIL is actually AMSOIL

Why pay retail, Preferred Customers save up to 25% off retail pricing providing the ultimate protection at the best price possible.  Orders for over $100 get FREE shipping

Norm Stokes
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