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API Base Oil Groups 1 - V. #4580855
11/21/17 10:36 AM
11/21/17 10:36 AM
Joined: Jul 2003
Posts: 208
Houston, TX
DWC28 Offline OP
DWC28  Offline OP
Joined: Jul 2003
Posts: 208
Houston, TX
Are any of you aware of when the API Base Oil groups originated and how they came about? It seems that they originated around the same time as API SH and CD but I cannot find any history of who originated the five groups.

Re: API Base Oil Groups 1 - V. [Re: DWC28] #4580871
11/21/17 10:54 AM
11/21/17 10:54 AM
Joined: Dec 2005
Posts: 9,901
Upper Midwest
kschachn Offline
kschachn  Offline
Joined: Dec 2005
Posts: 9,901
Upper Midwest
The API categorizes base groups in API 1509 Appendix E. That's available online if you search.

What's interesting is that the group designations are intended to give guidance to blenders and formulators for interchangeability in base stocks to ensure consistent performance, not as an overall indicator of finished oil performance. You see people on here constantly extrapolating the group designations of API 1509 Appendix E into some grand measure of "quality" but that is not the intended use. A finished oil is still more than the physical properties of the base stock.

As to when it came about I don't know. Perhaps the API could tell you when API 1509 Appendix E was first published.


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Re: API Base Oil Groups 1 - V. [Re: DWC28] #4580884
11/21/17 11:17 AM
11/21/17 11:17 AM
Joined: Oct 2004
Posts: 7,984
Cincinnati, OH, USA
bullwinkle Offline
bullwinkle  Offline
Joined: Oct 2004
Posts: 7,984
Cincinnati, OH, USA
I imagine Group I was probably about 1900 or so. Group V was pioneered by the Germans before WWII for aircraft in cold weather conditions, along with GTL technology (Fischer-Tropsch). Not sure about the hydrocracked groups, guessing a little later?
http://www.machinerylubrication.com/Read/28671/basics-of-syntic-oil-technology-


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Re: API Base Oil Groups 1 - V. [Re: DWC28] #4580936
11/21/17 12:11 PM
11/21/17 12:11 PM
Joined: Jun 2002
Posts: 19,241
Iowegia - USA
MolaKule Offline
MolaKule  Offline
Joined: Jun 2002
Posts: 19,241
Iowegia - USA


Reading is fundamental; understanding is not a given ability.
Re: API Base Oil Groups 1 - V. [Re: MolaKule] #4581200
11/21/17 05:55 PM
11/21/17 05:55 PM
Joined: Jul 2003
Posts: 208
Houston, TX
DWC28 Offline OP
DWC28  Offline OP
Joined: Jul 2003
Posts: 208
Houston, TX
Appreciate your responses but I must not have identified what I was looking for. The API base oil groups have been well defined and much written about them. But, what I am looking for is how and when they came to be called Grp I, Grp II etc. I do not believe that the early oil industry called the early solvent refined oils Group I oils. But some where they began to be called that, Was 1509 the original name assigner? Was the first issue of 1509 the first time base oils had been divided into these five groups? I assume it was done for base oil read across purposes AKA saving money in testing. I am older than most of you but I cannot recall discussions on how the various groups got their spots. Thanks again.

Re: API Base Oil Groups 1 - V. [Re: DWC28] #4581388
11/21/17 09:06 PM
11/21/17 09:06 PM
Joined: Jun 2002
Posts: 19,241
Iowegia - USA
MolaKule Offline
MolaKule  Offline
Joined: Jun 2002
Posts: 19,241
Iowegia - USA
For the History of the API try:

The Story of the American Petroleum Institute, by Leonard M. Fanning, published in 1959, and

The American Petroleum Institute: An Informal History (1919 1987) by Stephen P. Potter, published by API in 1990

Alibris or Abe's book stores may have them.


Also:

https://aoghs.org/


Last edited by MolaKule; 11/21/17 09:11 PM.

Reading is fundamental; understanding is not a given ability.
Re: API Base Oil Groups 1 - V. [Re: MolaKule] #4581949
11/22/17 02:48 PM
11/22/17 02:48 PM
Joined: Oct 2011
Posts: 945
Toronto ON
Solarent Offline
Solarent  Offline
Joined: Oct 2011
Posts: 945
Toronto ON
There is also a good summary of what happened in this article:

Lube Report Jan 2017

The whole history is encompassed in the need for base oil interchange circa 1991-1992

Re: API Base Oil Groups 1 - V. [Re: Solarent] #4581992
11/22/17 03:33 PM
11/22/17 03:33 PM
Joined: Jul 2003
Posts: 208
Houston, TX
DWC28 Offline OP
DWC28  Offline OP
Joined: Jul 2003
Posts: 208
Houston, TX
Originally Posted By: Solarent
There is also a good summary of what happened in this article:

Lube Report Jan 2017

The whole history is encompassed in the need for base oil interchange circa 1991-1992



Thanks Solarent, must have missed this issue of L&G. This gets me a lot closer. Wish I knew who was promoting what position, but Mr. Swedberg may write more.

Re: API Base Oil Groups 1 - V. [Re: DWC28] #4582014
11/22/17 03:49 PM
11/22/17 03:49 PM
Joined: Oct 2011
Posts: 945
Toronto ON
Solarent Offline
Solarent  Offline
Joined: Oct 2011
Posts: 945
Toronto ON
You could always email him and ask. His email address is usually included at the end of his regular column in the magazine (see page 11 in this issue).


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