Torco SR-5 5w-30

[johnbottilaw]

Alum: 1

Iron: 1

Tin: 1

Moly: 1163

Potassium: 1

Boron: 18

Silicon: 9

Sodium: 13

Calcium: 1383

Magnesium: 11

Phosphorus: 1012

Zinc: 817

TBN: 6.8

This oil contains a lot of moly and not a lot of phosphorus. Usually the balance of phosphorus
to zinc is switched around, with more phos than zinc present. Note silicon, an anti-foam additive. The
flashpoint was lower than expected in this sample, bit not really a problem. We have found that the
more additive that is present in an oil, the lower the flashpoint. This base stock (before the additives
were added) would likely have a flashpoint of 450ºF or higher. The TBN read at 6.8, which is normal
for a gasoline engine oil. This is related to calcium.

 

[unDummy]

SR5 is the race GroupIV/V oil. I don't expect it too last the exteneded OCI crowd. TBN is way too low.

This oil might make a good 'additive' for someone that likes moly.

I am a little surprised at the low Z and P simply because it is advertised as the 'race oil'. But, they might also be using other additives not tested for or not usually showing up in the VOA.

Compare to their SR1 synthetic street oil here:
http://theoildrop.server101.com/forums/showflat.php?Cat=0&Board=UBB11&Number=789009

And older SR5 VOA:
http://theoildrop.server101.com/forums/showflat.php?Cat=0&Board=UBB11&Number=473052

 

[unDummy]

BTW, what lab are you using?

 

[johnbottilaw]

BLACKSTONE

 

[johnbottilaw]

Quote:

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SR5 is the race GroupIV/V oil. I don't expect it too last the exteneded OCI crowd. TBN is way too low.

This oil might make a good 'additive' for someone that likes moly.

Do not link reports from a reputable lab for comparison to labs I would not trust analyzing my feces. You do a disservice.
I am a little surprised at the low Z and P simply because it is advertised as the 'race oil'. But, they might also be using other additives not tested for or not usually showing up in the VOA.

Compare to their SR1 synthetic street oil here:
http://theoildrop.server101.com/forums/showflat.php?Cat=0&Board=UBB11&Number=789009

And older SR5 VOA:
http://theoildrop.server101.com/forums/showflat.php?Cat=0&Board=UBB11&Number=473052

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