Thinner oil = Increased wear?

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quote:

Originally posted by XS650:

quote:

Originally posted by androbot2084:
So now we have an oil with such exact tolerances that it is both an SAE 40 and a SAE 50 grade oil so that it meets the mil-prf-2104h grade as well as the mil-46167d grade.

That answers my earlier question about whether you just make your **** up or get it from Amsoil. You obviously make it up yourself. Amsoil weasel words things to make it sound like the have qualified for specs that they really haven't but they aren't full of ****.


Hey man, back off. He's certified!

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In the recent thread titled "5W20=15W40" androbot said:

"there is a universal oil for gasoline engines it is called 0w30 and it replaces 0w20, 5w20, 5w30, and 10w30."

Now, in this thread androbot says:

"0w30 and 0w40 is a universal oil that can be used in 0w20, 5w20, 5w30, and 10w30 applications in all temperatures."

So now he's claiming that there are TWO universal oils, 0W-30 and 0W-40. His claims are getting worse. Since he appears, from his name, to be an android/robot cross, I can only conclude that there were serious errors in his programming which are causing malfunctions in his reasoning abililty.
 
quote:

Originally posted by Oz_Mick:
I own two turbo Subarus and for both they recommend 5W30. In the WRX I run 10W40 because the car does a lot of trackwork in the heat of summer. I've seen more than one car running 5W30 in summer on the track that did its bearings.
I remember reading a few years ago, on a Subaru enthusiast's forum from the UK, about rod and main bearing failures in WRX's. This was happening somewhat frequently to owners in both the UK and in OZ. This occurred most often during high speed, very high rpm throttle lift. It seemed that the only thing that prevented this with any degree of consistency was switching to a thicker (5w40 or 10w40) high quality synthetic oil. As I recall Motul was the specific brand.
Apparently the thinner oils had insufficient film strength under these conditions and the shock to the bearings from the high rpm throttle lift would cause the bearings to scuff and fail.
 
quote:

Originally posted by jmacmaster:
...Since he appears, from his name, to be an android/robot cross, I can only conclude that there were serious errors in his programming which are causing malfunctions in his reasoning abililty.

Hehhehe, looks like they threw out the SEI's SCMM when they designed his software.
grin.gif
 
quote:

Originally posted by TooSlick:
XS650,

We're not claiming this guy as an Amsoil dealer - probably works for EOM.
smile.gif


TS


Sorry, TS, but he reminds me of the old time online Amsoil dealers. You, Pablo and **** (who was one of the few old time online Amsoil dealers who wasn't a jerk) are actually decent people.
cheers.gif
 
quote:

Originally posted by harrydog:
Apparently the thinner oils had insufficient film strength under these conditions and the shock to the bearings from the high rpm throttle lift would cause the bearings to scuff and fail.

I'm always leery of conclusions like this. Seen enough cases where the TRUE problem was oil distribution. High lateral G's would prevent oil from properly returning to the pan. Thicker oil would hit the bypass sooner, decreasing flow, leaving more oil in the pan and masking the true problem.
 
quote:

I remain disturbed by the nearly universal BITOG phenomenon of focusing on oil alone, as if one grade or another is "good" while another is inherently "evil."

With all due respect, this is senseless.

What really matters, IMO, is the oil, engine, and circumstances combination

Agree 100%!
 
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