Royal Purple says this about Castrol Edge

[ZZman]

From their FAQ section

The Sequence IVA test is an industry bench test that is used to test oils for API licensing purposes. Some portray this as a sound methodology for predicting wear protection. We believe the ASTM D-2782 Timken Load Test is a better methodology for predicting wear because the Timken test actually measures a lubricant’s film strength (its ability withstand the effects of load, speed and temperature without breaking down and allowing metal to metal contact). Royal Purple has dramatically higher film strength versus competing lubricants. For instance, Royal Purple has nearly 6 times the film strength of Castrol Edge®.

• Royal Purple film strength = 113,839 psi
• Castrol Edge® film strength = 18,979 psi

 

[Camu Mahubah]

Timken Test has four times the balls of Sequence IVA!

 

[Tim_G]

Then explain why the Castrol Edge did better in the IVA test?

 

[buster]

Wow, I'm disappointed in their answer. So an actual ASTM test that uses tear downs to measure wear is not a good test? Ok.

 

[tdi-rick]

Where's Neo with some Falex test figures, their 0W-5 will blow RP out of the water

Love the spin, and with a shrinking market and revenues it's only going to get worse.....

 

[tig1]

Isn't this the silly test that bleach performs better than oil?

 

[Pablo]

Meh....cheese flavor.

Ball on the T.....he swings and.....and.....he misses.

 

[buster]

This doesn't mean however that Edge will protect better than Royal Purple. Again, it's ONE ASTM test. It's also a test that is more about stop/go driving than high performance. Keep that in mind.

 

[Oily_McOilenson]

I use only Clorox in my engine.

 

[buster]

RP's response is comical.

Quote:
Though Timken no longer manufactures the test machine, Timken OK Loads are still listed on grease and oil property charts. It was once generally assumed that the measure and the film strength of the lubricant were directly related. Today, the primary purpose of the test is to determine whether EP additives are present and functioning. A measure of 35 pounds-force (16 kilograms-force or 155 newtons) or more means that EP additives are present and working.


From wiki.

 

[Colt]

Royal Purple would be one of the last brands of synthetic oil I would use.
Just on top of Super Tech.

 

[Pablo]

Originally Posted By: buster
This doesn't mean however that Edge will protect better than Royal Purple. Again, it's ONE ASTM test. It's also a test that is more about stop/go driving than high performance. Keep that in mind.


I'm not saying that. I'm just saying RP (and other oil companies)get a fat one down the middle....and the response is weak. You have dished up an excellent response, btw.

 

[firemachine69]

Originally Posted By: Oily_McOilenson
I use only Clorox in my engine.



Does that count as a flush, or a snake oil?

 

[ZZman]

I did find this: http://www.engineersedge.com/lubrication/extreme_pressure_additives.htm

I thought I read that EP's can be corrosive. Does that mean that Royal purple could be more corrosive than other oils?

Are EP's corrosive, or has this been overcome?

 

[Art_Vandelay]

Originally Posted By: Camu Mahubah
Timken Test has four times the balls of Sequence IVA!


That's hilarious!

 

[UNC017]

Originally Posted By: Colt
Royal Purple would be one of the last brands of synthetic oil I would use.
Just on top of Super Tech.


Why's that? I'm not a brand apologist and I've never used RP in an engine, so I'm just curious to what objective measurements make you say that. Granted, their love of the Timken "test" is bothersome, but other evidence? used oil analysis? VOAs?

 

[tig1]

Originally Posted By: ZZman
I did find this: http://www.engineersedge.com/lubrication/extreme_pressure_additives.htm

I thought I read that EP's can be corrosive. Does that mean that Royal purple could be more corrosive than other oils?

Are EP's corrosive, or has this been overcome?




Notice this about EPs.



http://www.mobiloil.com/USA-English/MotorOil/Car_Care/AskMobil/Oil_Film_Strength.aspx

 

[aquariuscsm]

TOTALLY off topic,but I just read that link from above ^^,and was going through the questions submitted by consumers and saw this one about the PAO bast stock question:

http://www.mobiloil.com/USA-English/MotorOil/Car_Care/AskMobil/Group_3_Base_Oils.aspx

 

[GrampsintheSand]

Originally Posted By: 440Magnum
Originally Posted By: Colt
Royal Purple would be one of the last brands of synthetic oil I would use.
Just on top of Super Tech.


Why's that? I'm not a brand apologist and I've never used RP in an engine, so I'm just curious to what objective measurements make you say that. Granted, their love of the Timken "test" is bothersome, but other evidence? used oil analysis? VOAs?



http://lmgtfy.com/?q=RP+UOA+site:bobistheoilguy.com

 

[Steve S]

Originally Posted By: firemachine69
Originally Posted By: Oily_McOilenson
I use only Clorox in my engine.



Does that count as a flush, or a snake oil?

It gets the white metals whiter