Its that time again

slow5.0gt said:

For an oil change... Ive searched around for a test that proved Royal Purple on top or close to the top of synthetic oils... no such luck till i found this

http://www.animegame.com/cars/Oil Tests.pdf

Im surprised that Mobil 1 scored so low on the test.. I know most people on the forums use mobil 1 i believe...
But it still leads me to believe that the "good" things about royal purple are all hype... Ive only found 1 test by an independant lab that supported royal purple.

Anyone found a test where they test synthetics vs synthetics to find out where they ranked? A place that isnt tied into the company that is the winner of that oil test....

All I find are amsoil coming out on top...

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That test is all well and good, but it is not indicative of the stresses inside your motor. The critical points are bearings. And there you have perfectly mated surfaces where the load is spread evenly, rather than focused on a single mis-matched contact surface.

Companies like SPF use that test to show they are better. Othere companies use a series of gears to show how their oil sticks to the gears better and transfers from gear-to-gear better.

But none of that says a thing about how it flows thru the motor and protects bearings that are made to be protected, rather than being made to abuse the oil in ways it was not designed or intended to be abused...

In short, take it all with a grain of salt. If you want to protect unmatched surfaces, then the test you quoted should guide you to choose the oil that would best do that. But it is unrelated to what goes on inside a well-designed motor. I have seen motors run with kerosene in them (minutes, not hours and not under load) to clean them out. With no damage. The test in the article you gave would flame up quickly.

Good bearing design and tight tolerances are a different animal from the test that was run.

I agree, that test is elementary and old as hell. It doesn't test for oxidation, foam resistance, corrosion classification or how it reacts to various forms of heat/contained (not local)pressure/abrasion and has a very small contact point - favoring a certain type of oil composition.
Hey guys, let make a slip and slide and test which oil allows a fat guy to slide the furthest!

CobraRed_96_GT said:

Hey guys, let make a slip and slide and test which oil allows a fat guy to slide the furthest!

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no, no , no the results using hot girls in string bikinis on a slip and slide would be far more relevant

I switched to RP recently, and it seemed ALOT thinner than the previous synthetics I've used. So far, it's worked well, but I haven't felt any noticeable "performance" increase on my 110k mile 4.6 i'm probably gonna go back to cheaper synthetics after this batch

I use Mobil One Extended Performance in my Subarus and
all my customers Subarus and they are mostly turbo vehicles.
I never once had a problem with Mobil One or seen engine
breakdown due to Mobil One so I will continue to use it.