new PQIA data

[dnewton3]

http://www.pqiamerica.com/Janaury 2012 test results/Jan2012b1.html

I will always believe that results mean more than inputs, but there is nothing wrong with comparitive data.

I note that Peak (my current load at $2/qrt) is every bit as good as MC semi-syn (around $3.5/qrt). And what about the Lucas oil? Not really a stand out, is it?

Again, performance outpaces profiles for knowledge of how an oil really can protect an engine, but at the outset, there is plenty of data to show that bargin oils can at least stand just as tall at the starting gate.

 

[volk06]

This has been discussed and posted a few times. Also note the MC was sm rated while peak was SN

 

[Rand]

Originally Posted By: dnewton3
http://www.pqiamerica.com/Janaury 2012 test results/Jan2012b1.html

I will always believe that results mean more than inputs, but there is nothing wrong with comparitive data.

I note that Peak (my current load at $2/qrt) is every bit as good as MC semi-syn (around $3.5/qrt). And what about the Lucas oil? Not really a stand out, is it?

Again, performance outpaces profiles for knowledge of how an oil really can protect an engine, but at the outset, there is plenty of data to show that bargin oils can at least stand just as tall at the starting gate.



how does a voa show that peak is as good as MC?

and that's sm MC vs SN peak.


edit: people typing while I am apparently

 

[toneydoc]

Like Home Depot says "You can do it." But not me. I do indeed use dino lubes in many of my vehicles, but I will not do it for more than 4500 miles, often times less miles. They may work longer than that but I pick them up on sale like you do and I do not mind wasting a dollar or two by changing it at 4k miles. I sleep easy at night knowing my engines are running on good oil that is not about to cause any sludge.

 

[OtisBlkR1]

I feel the same way about shorter runs of SYN...

 

[CATERHAM]

Originally Posted By: volk06
This has been discussed and posted a few times. Also note the MC was sm rated while peak was SN

Yes like a week ago by Tom_NJ below:

https://bobistheoilguy.com/forums/ubbthreads.php?ubb=showflat&Number=2503493&page=1

 

[dnewton3]

Originally Posted By: Rand
Originally Posted By: dnewton3
http://www.pqiamerica.com/Janaury 2012 test results/Jan2012b1.html

I will always believe that results mean more than inputs, but there is nothing wrong with comparitive data.

I note that Peak (my current load at $2/qrt) is every bit as good as MC semi-syn (around $3.5/qrt). And what about the Lucas oil? Not really a stand out, is it?

Again, performance outpaces profiles for knowledge of how an oil really can protect an engine, but at the outset, there is plenty of data to show that bargin oils can at least stand just as tall at the starting gate.



how does a voa show that peak is as good as MC?

and that's sm MC vs SN peak.


edit: people typing while I am apparently

Here's how ...
Noack lower = better
TBN higher = better

I CLEARLY stated that VOAs are not the absolute way to judge an oil, but it does show, as I stated, that most of these oils are not nearly far apart as most would think. And considering the cost difference? Peak wins at the starting gate.

Now, time will tell how well Peak does at the finish in my UOAs. But my "cheap" QS dino did a steallar job on my last UOA at the same $2/qrt, and it has similar specs to the Peak.

I firmly believe that UOAs tell us more than VOAs, but many people here use VOAs to justify their choices, and I am pointing out that most products, while separated by significant cost differences, are not that far apart when it comes to VOAs.

 

[Garak]

Originally Posted By: dnewton3
I firmly believe that UOAs tell us more than VOAs, but many people here use VOAs to justify their choices, and I am pointing out that most products, while separated by significant cost differences, are not that far apart when it comes to VOAs.


I do like looking at VOAs, but not so much for comparison's sake, per se. I do have one application that could benefit from higher ZDDP, so I pay attention to zinc. Aside from that, viscosity, moly, and TBN (and on rare occasions, detergents) are interesting to look at. That being said, I'm well aware that starting viscosity and starting TBN have little to do with how things are going to pan out over the OCI. My main concern here is ensuring that whatever I'm looking at is within specs in the first place.

Early on in my tenure here, I used to worry about oils with "low" starting TBN. As we've seen in UOAs, though, TBN isn't commonly a big issue over an OCI if the oil is properly matched to the application in the first place. Obviously, PYB 10w-30 isn't optimal for a modern diesel, and the TBN may plummet in short order. Alternatively, going to a very high TBN HDEO of a couple specs back with a very high TBN isn't going to magically allow a 30,000 mile OCI in a gasoline engine, either.