qsud

[QSUDFrostedFlake]

Originally Posted By: Boss302fan
QSUD is one of the best Syn oils anyone can buy. Excellent informative website at this link...

https://540ratblog.wordpress.com/

I topped off with the gold bottle Syn Blend called Advanced Durability but it has 5 quarts or 1 gallon of the ultimate in it.

 

[Boss302fan]

Originally Posted By: Garak
Originally Posted By: Boss302fan
QSUD is one of the best Syn oils anyone can buy. Excellent informative website at this link...

Misinformation, you mean.


Why is it misinformation? I think you should explain your post...

 

[Garak]

It's been explained here many times already, and there are several threads on it scattered all over the place. The short version is that the methodology isn't published and error analysis isn't published. So, the data is garbage. No one's going to tell me that he does this test to six significant figures of accuracy. So, his test isn't repeatable or reproducible because of those failures. Beyond that, what he's testing has nothing to do with what goes on within an engine, and he's, at best, using a screening test that's already done early on.

His "testing" represents nothing that the API, ILSAC, ACEA, or OEMs are interested in.

 

[Boss302fan]

A lot of strange people on this site but I guess they have the right to have an opinion.

 

[kschachn]

So true, and opinions are all that site has. No verifiable nor relevant data whatsoever.

 

[Boss302fan]

Same here in most cases... All I know is that any motor oil you purchase at Walmart is going to work well in any vehicle if you follow the manufactures recommended maintenance.

 

[Garak]

Originally Posted By: Boss302fan
A lot of strange people on this site but I guess they have the right to have an opinion.

Well, there really isn't a lot of room here for any opinions on the matter. Or, depending on your viewpoint, all it is is opinion, because he doesn't allow review. And, he certainly doesn't offer science.

Since I cannot examine his error analysis, much less replicate what he does, what he does isn't science. It is strictly opinion, and, worse, misinformation. I can tell you right now from what we do now about his methodology, which is precious little, the error bar is at least 20%, so reporting six significant figures is laughable. Two is closer to the truth, and that might be generous in a number of instances.

You either follow accepted experimental practices, or you do not. He does not. And, when and if he chooses to do so, he still has a giant mountain to climb, which is demonstrating how any of this pertains to what goes on in an engine.

 

[69GTX]

Originally Posted By: salcuta88


QSUD had the best protection in terms of PSI and thermal breakdown.



No it doesn't. Mobil 1 0w-40 now tops the list as the RAT's "best oil." And several other M1 products are near the top of the list as well.
If quoting a reference, at least do it properly.

 

[53' Stude]

+1000

And to poster that said he used "gold bottle QS" that is called "enhanced durability"

QSGB is called "advanced durability"

 

[xtell]

Just dump some QSUD in your rig and run with it. It is a good oil. Move on to other things.

Nuff said.

 

[Boss302fan]

Originally Posted By: xtell
Just dump some QSUD in your rig and run with it. It is a good oil. Move on to other things.

Nuff said.


Ditto... LOL.

 

[4WD]

Scooped some QSUD up on sale - gonna try in 1.4T soon ...

 

[Drivefree]

QSUD is high quality, high performance full synthetic oil. Can easily go 8k miles between oil changes. Mobil 1 and Warren/Supertech/Kirkland turned black much sooner. Mobil 1 was dark after 1k miles. I believe QS and Pennzoil share the same formulation and are made by Shell. High TBN and moly numbers.

 

[Gene K]

My guess is QSUD was tested with primarily GIII to meet it's goals and that the average jug you buy is actually considerably upgraded as SOPUS dumps excess GIII+ (GTL) production using the write across rules. If you put the cheapest D1G2 rated oil like WPP (An excellent product itself) as the base level and PP as the upper level I suspect QSUD is about 80% of the way to PP on average. If I remember correctly it used to use regular Moly where as PP used the new "Super Moly" but I haven't kept up with formulation changes over the years. It's a fools errand anyway as they are constantly finding ways to build a better product for less cost.

 

[farrarfan1]

Posting those pictures in multiple Quaker State threads is pretty pointless.

 

[OVERKILL]

QSUD is high quality, high performance full synthetic oil. Can easily go 8k miles between oil changes. Mobil 1 and Warren/Supertech/Kirkland turned black much sooner. Mobil 1 was dark after 1k miles. I believe QS and Pennzoil share the same formulation and are made by Shell. High TBN and moly numbers.

This is the third thread that you've put this in.

 

[tblt44]

Originally Posted By: awoess
I have no experience with Quaker State ultimate durability just wondering if it's "just [censored] good oil" as they say it is? How does it compare to pp or pyb? 5w-20 Does it contain lots of molybdenum?


My GM-magnetic oil pan bolt was loaded with metal shavings after using the QSUD 5W-20 in a 4.3 engine calling for 5w30. Only time this ever occurred using three different 5W-20 synthetics I inherited from a elderly neighbor that can't drive anymore.

Needless to say, I won't buy QSUD again.

Qsud was not the issue

 

[1bioguy]

QSUD is high quality, high performance full synthetic oil. Can easily go 8k miles between oil changes. Mobil 1 and Warren/Supertech/Kirkland turned black much sooner. Mobil 1 was dark after 1k miles. I believe QS and Pennzoil share the same formulation and are made by Shell. High TBN and moly numbers.

This may be a bad thing, maybe not cleaning enough?