http://neptune.spacebears.com/cars/stories/mobil1.html
http://neptune.spacebears.com/cars/stories/amsoil.html

Alright evo stang... Here are two completely independant tests with no affiliation with either mobil one or amsoil. Blackstone laboratories is the company, and they will do this for anyone who wants to send samples in. They are legally obligated to record the data and then send the results back untampered with. They have no reason to lie about anything, as they make their money regardless. I would like to add though that this is ironically who has done a couple of the tests for AMSOIL in the past, which is an attestment to AMSOIL's honesty in choosing a fully independant company to run their tests for them and not just claiming to use an independant lab that is affiliated with them.

Now, I will be the first to say that the milege of the vehicle used could have a mild effect on the results, although in whose favor it is impossible to know. Newer engines have more break in metals floating around and older engines are dirtier and suffer from more contamination as seals ad rings wear out. If the tests were done on two identical cars that were both driven the same way with the same mileage than perhaps the tests would be better, but either way I think that this says a lot about AMSOIL and MOBIL 1 alike. The basic results are that AMSOIL has FAR fewer wear metals and the insolubles were Far lower also. However, the viscocity thickened up quite a bit over the test.

The mobil one didn't change it's viscocity anywhere near as much, but it was far dirtier and has far more insolubles, and far greater wear metals. Also worth noting is the fact that the mobil one was tested on a car with almost 10,000 miles, and the amsoil was tested on the same car at about the 30,000 mile mark. The question that they bring up is whether or not the mobil one's greater wear metal content was because of coping with an engine that was still breaking in or not.

I would say that based on amsoil being consistently cleaner and having better wear scar results in every 4 ball wear test that this is not the case. Plus I've never heard of an engine that was still breaking in at 10,000 miles. Either way, they are both great oils and given the fact that they both lasted like 15,000 miles without being changed that you really can't go wrong with either one. I think that given that most people who care about their cars will change the oil every 3000 miles that the viscocity increase that amsoil suffered at like 10,000 miles is inconsequential.

The fact that it's so much cleaner and causes less wear to the mechanical components makes it better in my opinion. Not only that, but the oil that they tested was amsoil's run of the mill standard 5w30 oil, and that's not their highest performance oil and it STILL performed that well. The SSO 0W30 is their highest quality oil and would perform even better, which is almost scary. Mobil one 5w30 is, however, mobils one's top oil and the same that comes in our cars. Everyone can decide for themselves which one they like better, but I know which side of the fence I am oil. AMSOIL FTW!

 

Most of the tests on the AMSOIL Website are Third Party... They are done by several of the Top Independent Testing Facilities in the US.. At least one of them is a Non-Profit.

As far as this person or that person doing "tests".... they are not duplicatable and therefore don't mean a lot.

At least AMSOIL publishes the names of their competition instead of hiding behind "Among the Leading brands" or similar statements... If what AMSOIL Publishes on their website, on their bottles and their cases were false, a company such as Mobil would be able to sue AMSOIL out of business.. Instead, AMSOIL has been honored by their Peers and nominated into the Lubricants Hall of Fame... Yes, there is such a thing..

Mobil 1 EP is a very good choice as well... Royal Purple... I'd use it to hold the dust down on a gravel road...

"Also, they have the same test report giving two different results. One test pubilished by Amsoil in 2005 says Mobil 1 had a .55mm scar depth, the other test published by Amsoil in 2007 says it's a greater than 1mm scar depth. Which is correct? I believe Amsoil is just publishing the information which makes them look best, just like any other company would."

Many of AMSOILs formulations have been changed since early 2006 and in late 2007 the SSO was totally changed....TBN raised and additive packs boosted.

Just as many other oils have been reformulated, many of them removing/reducing their ZDDP (Anti-Wear) additives.

It is an ever changing world out there and lubricants are right among the top changers ..

I have quite a few EVO Members that I have sold AMSOIL to and continually receive excellent reports from them from no lifter tick, smoother running, smoother shifting and the oil doesn't get dirty as fast as with the other brands mentioned...


Doc

 

Mobil Uno

 

Maybe you didn't look at this one >>> http://www.tundrasolutions.com/forum...-vs-mobil-1-a/ it has another independent test... Very informative.

 

I read that webpage days ago. It's not a repeatable test, which makes the results irrelevant. I'm going to argue just for argument's sake.

Testing facilities aren't legally obligated for anything. I use test facilities regularly, for MIL STD 810 and SAE J1455, etc. Those facilities are not legally obligated for anything. Real documentation needs to be produced, not just stuff that anyone can come up with after 5 minutes of Google searching. I give more credit to Amsoil's own testing than I would give to a bunch of guys on the internet doing an oil analysis, because at least Amsoil's ASTM testing is repeatable. However, much of the time in industry, test houses will produce a completely unbiased test report, and then the customer who receives that report will only publish the portions of the data after the test report has been filtered to skew the data to the customer's advantage. The test reports Amsoil is sayng they tested to are not small simple documents, they will produce large test results documents. It looks as if only portions of those documents have made it onto Amsoil's webpage. I think you are being a little naive if you believe every company is 100% honest with it's customers. Even Mobil would skew data on Mobil1 if it were ever published.

This is mostly caveated on the website.

The validity of this statement is negated by the caveat you made in the same paragraph in which the statement was made. It's futher negated by the website autor who make the claim "Note that molybdenum and silicon can be both an additive and an indicator of engine wear".

According to the data insoluables were identical, both ranged from 0% to 0.5%, and both trended higher as mileage increased.

Correct.

Only part of the first sentence is correct, see above. Also worth noting is that the Mobile 1 was run for 18000 miles and the Amsoil was run for 14000 miles.

Also, define "dirtier". What makes the oil dirtier and why. You keep throwing around these vague statements, and I can't find anything to back them up.

Except for the "consistantly cleaner" part which needs to be defined, I would tend to agree.

Define "so much cleaner".

I have no aversion to running Amsoil, I have friends who run Amsoil with no problems. However, I still do believe it's MLM, just MLM with a good product. I also do believe that based on the price difference and oil change intervals, Amsoil is too expensive for the insignificantly margnial benefit it may give you over other oils. People like to make draconian statements like "when your engine blows up" and such to describe the differnce between Amsoil and others. If your engine is going to fail, it's not normally because of the oil. It's because of something else the owner did. Oil doesn't "save" and engine.


That's one of the ones I read. I still don't see the relevance. It's a comparison of oil specs and shows that in 5w-30, Amsoil and Mobile 1 are very similar. Also, there is no correlation of the numbers to the acceptable range (max and min values) that these numbers would be compared to. Not all the info is given, that why I say it's not relevant.

 

Well evostang, if you read the articles again you'll see that the insolubles were not close, they were significantly higher on the mobil one. They clearly state that the wear metals floating around in the mobil one were far higher. It has nothing to do with the molybdenum content being higher in mobil one because molybdenum wasn't considered a wear metal in either oil. It was the copper content and iron content that were way higher in the mobil one. I believe that AMSOIL is better, and not because I am naive and believe everything that I read on a company's website, but because I trust the evidence that's proven in tests that are unbiased and there are plenty of them. Plus, consider the fact that mobil one sued castrol for making claims that their oils were superior to mobil one with charts that displayed incorrect data. Yet here AMSOIL sits, after years and years of posting accurate charts proving their superiority with no law suits against them. That says quite a bit to me. Either way it doesn't really matter, they are both good oils and you really can't go wrong with either one of them. I just think that AMSOIL is better.

 

I agree with much of your post but chose the above as this is something that I look at as well. AMSOIL names, Names in their tests and could be sued right out of business if the findings were False or Inflammatory.

Another statement was made in another post about AMSOIL "leaving out competitors".... Yep, they sure did... But Not because the competitors did better. Actually some of the one's pulled from the tests did not do as well but the choice was made not to use them because AMSOIL has a Working Business Relationship with those companies and it was deemed that it would cause harm to that Relationship.

Although AMSOIL is a better Product, I always say that Mobil 1 EP is a very good oil and if AMSOIL was not available, M1 would be my choice.


Doc

 

So I took your advice and read it again. I still don't see how insoluble are very different. See attached graph. Please explain. Are you talking about the filter change at 12k miles? Up to 12k miles the insolubles are not significantly different.

 

nobody uses Motul???? And what about Castrol?

 

Stock

 

Hi guys, for those using AMSOIL, are you guys using

the signature series
http://www.amsoil.com/storefront/sso.aspx

or the high performance series
http://www.amsoil.com/storefront/asl.aspx

 

The choices should be between the SSO 0W-30 and the ATM 10W-30 not ASL 5W-30..

AMSOIL does not recommend the ASL for the EVO.

SSO 0W-30 is the choice if you want The Best of The Best... ATM 10W-30 is also a Great Oil..

Doc

 

we are using amsoil 10w-30 in our X

with amsoil filters.

cb

 

what do you guys think about the hot summer racing day with the Mobil 20w-50?
Road racing not drag or autoX.

 

I got a kick out of this one. As many of you have noted the engine oil cap states
5w-30. I let the dealers service department switch my oil last week and they put in 10w-30. Not that it matters but who are they to tell me I cant change the factory standard on my car if they don't have to follow the factory standard themselves.