10+ year old PP 10w30 VOA

[SubieRubyRoo]

So I posted a while back about finding a couple quarts of API SM PP 10W30 at a farm store. I wanted to see how much it's changed compared to SN+. Well, it has about triple the calcium, double the TBN, and even way back when it had moly and boron. And for all the people who believe oil has a shelf life, well, this quart laughs at you.

 

[demarpaint]

Nice. I'd use it w/o hesitation in my 4.9L E-150.

 

[Nickdfresh]

Holy calcium!

 

[maverickfhs]

WOW

 

[wemay]

That is a neat VOA, and well appreciated for some perspective. The Calcium is through the roof!

Thank SubieRubyRoo, for this and the other recent VOAs.

 

[Y_K]

Thank you, Sir

 

[SubieRubyRoo]

No problem all, this is fun for me. Since I don't have the chemistry background nor personal insider information, I figure VOAs and new filters that 53' Stude C&Ps for me on the board are a decent way to give back to the board. These two quarts and a 5qt jug of silver bottle PP 10w30 will either be used as top-off or blended in a quart at a time since right now my whole stable is EJ25s, and they like hearty add packs

 

[benjy]

its been stated UNOPENED oils can last 10 years, but prolly more in reality

 

[69GTX]

SM oils were quite stout. The move into SN started the cutting back on Calcium and other ingredients.

 

[SubieRubyRoo]

So I don't think I ever found a "true" way to gauge the age of these bottles- maybe someone with history can help. These were the silver quart jugs, and the entire front label was a shiny metallic-looking silver, and the word "NEW!" in red. I'll dig up the link from my other post, but I was wondering if anybody could give a closer date range because they vividly remember when it came out

 

[Linctex]

Hmmm.... I've got an unopened bottle of Castrol GTX 10W-30 "SL"

 

[SubieRubyRoo]

Sheesh, I'm losing it. I finally remembered why I posted about 10+ years old. I think it's interesting that such an old formulation still had ‘significant' moly and boron when compared even to some SN+ oils. Obviously it's no Idemitsu Eco Medalist or original TGMO, but it definitely wasn't commonplace for oils this old. That, along with a nearly 11 TBN!