Analyze This!!! : SVTP Checks Out Blackstone Labs' Oil Analysis

[1hot281]

Any further info regarding the viscosity loss in the HPS 5w30 sample?

 

[SID297]

We'll know more when I send in an unused sample.

 

[jojobee]

Is there an update on the RP HPS 5w30 ?

 

[SID297]

Is there an update on the RP HPS 5w30 ?

Not quite ready for another oil change yet.

 

[UnleashedBeast]

Any further info regarding the viscosity loss in the HPS 5w30 sample?

Is there an update on the RP HPS 5w30 ?

RP has not been very forthcoming with specifications of their new base and HPS line of engine lubricants. The last time I checked the site, specs were still not public posted.

I'm subscribing to this thread, as I also believe that the formulation did shear rapidly, as no form of fuel dilution is present in this sample. Here is what I need to make an informed decision about this UOA.

I'm not implying this is what you are saying, but it is unfortunately a very prevalent assumption in oil analysis circles these days.
Assuming shearing is responsible for any and all drops in viscosity is just not accurate.

I'll check with my supervisor Chris and see if he'll weigh in when he get's a chance.

Jimmy, what is the virgin cSt @ 100*C of Royal Purple HPS 5W-30? Since the website isn't listing any specifications, I need you to disclose it (if possible). I agree that shearing isn't always the reason why a lubricant decreases in viscosity. Fuel dilution also plays a vital role in this. However, in this instance, it appears this isn't the case.

 

[1hot281]

RP has not been very forthcoming with specifications of their new base and HPS line of engine lubricants. The last time I checked the site, specs were still not public posted.

I'm subscribing to this thread, as I also believe that the formulation did shear rapidly, as no form of fuel dilution is present in this sample. Here is what I need to make an informed decision about this UOA.



Jimmy, what is the virgin cSt @ 100*C of Royal Purple HPS 5W-30? Since the website isn't listing any specifications, I need you to disclose it (if possible). I agree that shearing isn't always the reason why a lubricant decreases in viscosity. Fuel dilution also plays a vital role in this. However, in this instance, it appears this isn't the case.

The only VOA of any HPS oil I could find was of the 10w30, which had a cSt@100*C of 11.3

Royal Purple 10W30 HPS - Bob Is The Oil Guy

If the 5w30 has a starting cSt@100*C close to this, dropping to 8.5 cSt after just 4k miles, with little fuel dilution, is some serious viscosity loss.

 

[UnleashedBeast]

The only VOA of any HPS oil I could find was of the 10w30, which had a cSt@100*C of 11.3

Royal Purple 10W30 HPS - Bob Is The Oil Guy

If the 5w30 has a starting cSt@100*C close to this, dropping to 8.5 cSt after just 4k miles, with little fuel dilution, is some serious viscosity loss.

Viscosity of both lubricants should be very close. I also agree there is no dilution of significance to cause this level of shearing/thinning from a lubricant supposedly in top tier category.

 

[SID297]

We just did another oil change in the car. It's probably going to be a little while before I send in the sample though.

 

[UnleashedBeast]

We just did another oil change in the car. It's probably going to be a little while before I send in the sample though.

Thank you sir, I eagerly await the results.

 

[SID297]

We just sent off 4 samples to Blackstone. it was sent Priority mail so we'll probably get the reports back pretty quickly.

 

[UnleashedBeast]

Thank you sir! This will help to clear up some of the questions about Royal Purple.

 

[roll-n]

Any updates?

 

[POPPAJ]

????? I gots to know.

 

[SID297]

Any updates?

????? I gots to know.

Keep a closer eye on this forum. We posted an update about 2 weeks ago:

http://www.svtperformance.com/forum...e-used-oil-analysis-reports-have-arrived.html

:beer: