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Interesting.
ok, this shit wont work.
So if you live in Alaska, don't use Royal Purple oil. Nobody should be using Walmart oil for anything anyway.
Just keep in mind, there is more to oil than its viscosity in cold temps, but it's still an important test.
Interesting test for sure.
at -40* I wouldnt be starting anything I gave a shit about without a block heater lol
Not that this is an "Amsoil is the best" test, or even talking about the lubricity of Amsoil or any of the others, but I got to do a pretty cool test at a BG Products Demo.
They werent selling anything BUT an additive, for fuel and oil, and they pulled out a pretty cool roller bearing/pivot/torque wrench setup to demonstrate how their product worked.
Skipping past their product....LOL
After the reps demo I asked him if I could try a few different oils just to see how they really handled it. We've all seen every oil company showing how much better theirs is than everyone elses with the bearings in a cup of oil that they stack weights to to cause damage...so I figured it was a good shot to do a little independent study.
We had a bunch of "racing oil", regular mobil 1, "high zinc" shit, you name it I probably tried it. Even went and got some QT and Walmart Oil.
So how the machine was setup...
There was a small cup to hold the oil, with a roller bearing indside spun by an internal motor in the machine.
Above that was a pivton point with a torque wrench and a curved piece of stationary metal that as you pressed down on the torque wrench it would show you how much pressure was being applied to the bearing/metal.
Simple test.
Now this is all from memory so take it for what its worth as far as numbers go, but,
Mobil 1 10w30 and the metal would start squealing at about 15ftlbs and at 20-25 you could stop the motor and bearing.
Valvoline VR1 20-50 was the same way.
Everything else would squeal at about 5ftlbs and be stopped by 15 or so.
Amsoil 10w30 wouldnt even start making noise until 20-25ftlbs and would take about 40ftlbs to stop it. With their additive (BG Products if anyone cares to look it up) you were literally bending the table and worried about breaking the torque wrench trying to get it to stop.
Obviously this isnt a super scientific test for an engine because there is no pressure, the forces are different, etc... but it still demonstrates how well Amsoil works compared to others.