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Old 08-29-2009, 12:29 PM   #1 (permalink)
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Amsoil vs Schaeffer

I was wondering what everyones opinion was on these to oils what do you feel is the better synthetic to go with.
Thanks,
Scott
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Old 08-29-2009, 01:07 PM   #2 (permalink)
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Neither unless you're going at least 20k miles between changes.
I believe in synthetics for trannys and differentials but not in diesel engines.
Modern dino oil is very high quality and will go at least 10k between changes.
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Old 08-29-2009, 03:06 PM   #3 (permalink)
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I was wondering what everyones opinion was on these to oils what do you feel is the better synthetic to go with.
Thanks,
Scott
After watching both amsoil and schaeffer get tested on a lubricity tester machine I gotta vote for Schaeffer.
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Old 08-31-2009, 12:02 PM   #4 (permalink)
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just to make it more confusing, look at spectro oils and lubro moly as well.
i use amsoil now but maybe i just fell fo rthe hype, i don't know. i do plan on extended drain intervals though after i send in a sample to see how far i can go.
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Old 08-31-2009, 12:16 PM   #5 (permalink)
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20k is easy to do on amsoil. if you get the bypass kit you can plan on 100k oil changes with regular oil filter changes and sending in a sample to see how the oil is standing up.
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Old 08-31-2009, 10:48 PM   #6 (permalink)
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After watching both amsoil and schaeffer get tested on a lubricity tester machine I gotta vote for Schaeffer.
What's a lubricity tester?

It isn't one of those unapproved machines that many call a one-armed bandit?

Does this lubricity tester check for viscosity, ability of the oil to resist shearing, oxidation, foaming, & so on?

If an oil exceeds in one area, but does poorer (or worse yet fails) than other oils in other test criteria is it still a good oil?

AMSOIL has some good white papers on their website where they test their gear, engine & motor cycle oils against some of the competition. Worth the read even if you just want to understand better the criteria that an oil has to meet.
What makes it interesting is that they name names... and to date have not been sued or have had to stop publishing the results.
Now, some people like to try to discredit or downplay these papers because their beloved brand-X oil wasn't tested... so their argument is that it must be as good or more likely better than amsoil because it wasn't mentioned... If brand-X is so good why don't they publish their own test results showing how much better than amsoil, or mobil, or rotella, or mazolla their own product is?
It is so easy for brand-X to publish test results showing that they beat brand-A & brand-B.... name names if your product is that good.

Anyway... having said that... I agree with earlier comments... if you aren't going to use the benefit of extended drain intervals, any synthetic is going to be costly.
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Old 08-31-2009, 10:59 PM   #7 (permalink)
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SCHAEFFERS 100% They had a booth at Farm Science Review last year and had a bearing that spun on the end of a rod that you could push down on a sheet of metal and make it stop. They put valvoline, mobil 1, and I'm thinking even maybe Amsoil on it. A buddy of mine weighing 350 plus put all his weight on it and the only one that he couldn't make stop spinning was when they put the Schaeffers on it. Since then I've been a believer in the stuff
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Old 08-31-2009, 11:51 PM   #8 (permalink)
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Quote:
Originally Posted by Thundercraft View Post
What's a lubricity tester?

It isn't one of those unapproved machines that many call a one-armed bandit?

Does this lubricity tester check for viscosity, ability of the oil to resist shearing, oxidation, foaming, & so on?

If an oil exceeds in one area, but does poorer (or worse yet fails) than other oils in other test criteria is it still a good oil?

AMSOIL has some good white papers on their website where they test their gear, engine & motor cycle oils against some of the competition. Worth the read even if you just want to understand better the criteria that an oil has to meet.
What makes it interesting is that they name names... and to date have not been sued or have had to stop publishing the results.
Now, some people like to try to discredit or downplay these papers because their beloved brand-X oil wasn't tested... so their argument is that it must be as good or more likely better than amsoil because it wasn't mentioned... If brand-X is so good why don't they publish their own test results showing how much better than amsoil, or mobil, or rotella, or mazolla their own product is?
It is so easy for brand-X to publish test results showing that they beat brand-A & brand-B.... name names if your product is that good.

Anyway... having said that... I agree with earlier comments... if you aren't going to use the benefit of extended drain intervals, any synthetic is going to be costly.
This is the tester thing that I'm talking about-

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SCHAEFFERS 100% They had a booth at Farm Science Review last year and had a bearing that spun on the end of a rod that you could push down on a sheet of metal and make it stop. They put valvoline, mobil 1, and I'm thinking even maybe Amsoil on it. A buddy of mine weighing 350 plus put all his weight on it and the only one that he couldn't make stop spinning was when they put the Schaeffers on it. Since then I've been a believer in the stuff

The wheel spins in a cup of whatever oil you're using. Spinning the wheel is an electric motor with an amp gauge hooked up to it. A beam style torque wrench is used to apply a torque through a ball bearing smashed against the spinning wheel. You compare the amperage vs the torque. If that's what you're calling a "one-armed bandit" then so be it. It convinced me.

Just to keep in mind, I've been a huge fan of AMSOIL since the '90's. The only proof I had of their product being great was the oil analysis I was using to run 20k between oil changes. Schaeffers was just introduced to me withen the month.

At this time I'm still running factory oil in my truck as it rolled over 5k miles today. I plan on two oil changes using Valvoline Premium Blue as recommended by Cummins at Mopar change intervals before switching to either AMSOIL or Schaeffers. Neither of my ATV's have needed an oil change recently but will be getting one before getting stored for the winter.

Post those white papers from AMSOIL that you're talking about.
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Old 09-03-2009, 09:39 PM   #9 (permalink)
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Those white papers from Amsoil are clearly available from the front page of their website - right hand column under Oil Comparisons.

Did you know that Head & Shoulders shampoo performs really well with those one-armed bandits? It's the zinc.
If those machines were accurate, reliable, & provided meaningful information then ASTM, SAE or another governing scientific body would endorse them.
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Old 07-30-2013, 10:29 AM   #10 (permalink)
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Once you view the Schaeffer product via their oil stress testing machine you will not want to put anything else in vehicles you intend to protect. It plates with Moly. Most oils plate with something but Moly is strong and forms a barrier you cannot run through. Some over the road trucking companies have extended engine life and oil drain intervals to the point that the oils return on investment is realized. I have used it since mid 80's.
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Old 07-30-2013, 10:33 AM   #11 (permalink)
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The lubricity tester, whether approved or not, does show the ability of an oil to protect your engine, driveline or whatever. It is difficult to argue with what you see when comparing oils. I used amzoil years ago as I knew synthetics were the best for engines. I have used Schaeffers since mid 80's and would not even consider another oil.
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Old 07-30-2013, 10:34 AM   #12 (permalink)
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Zinc is one of many elements that plates itself.
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