OK, I used to use SJ rated oil, and now the new classification is SL. But what happened to the SK? Was it obsoleted so quickly, it never reached the market?
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What happened to the SK classification?
- Thread starter TheLoneRanger
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I remember reading that they just skiped over it to avoid confusion/interference with the SK Tools company... ![[I dont know]](/forums/graemlins/dunno.gif)
Patman
Staff member
They skipped SI too, also to avoid confusion with other things that had those initials.
Thanks Widman--
As a librarian I LOVE trivia. That's just the kind of (probably) useless but very interesting information that keeps me coming back to the site...
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Hello Lone, I do not know why they skipped the SK
rating but I do understand why they skipped
the SI rating, the I in SI looks too much like a 1 (numeral). ![[Smile]](images/icons/smile.gif)
I haved worked in the a few fields of facility design and layout, and have worked with building plans,
layout, etc. and the letter 'I' is left out of
column lines used in building plans to eliminate confusion with the number 1, for example, in a row of building column lines on building plan drawings, the columns listed will be A thru H, skip I, then columns J thru Z are listed (if needed).
I have seen the 'I' eliminated in a few fields of engineering and the API being in a lubrication engineering field, my guess is that is why the SI rating is skipped.
but I do understand why they skipped
the SI rating, the I in SI looks too much like a 1 (numeral).
I haved worked in the a few fields of facility design and layout, and have worked with building plans,
layout, etc. and the letter 'I' is left out of
column lines used in building plans to eliminate confusion with the number 1, for example, in a row of building column lines on building plan drawings, the columns listed will be A thru H, skip I, then columns J thru Z are listed (if needed).
I have seen the 'I' eliminated in a few fields of engineering and the API being in a lubrication engineering field, my guess is that is why the SI rating is skipped.I wish it was only trivia to me. They are across the street from me and compete. They were already telling people that they were better than SJ (with their SF/CC oils) since they were SK.
We have another competitor (YPFB) that sells a motor oil labeled "Premium SL". The API did not consider this a problem big enough to avoid the category. It is SF/CD
5k is the new standard.
Hello 10 year old thread!
Originally Posted By: SEMI_287
Hello 10 year old thread!
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