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#347454
Fri Aug 10 2012 08:53 AM
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Joined: May 2005
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Someone asked this awhile ago,so thought I'd post it here:
Up until the early 1980s,Sunoco used a numbering system to market its then-five grades of leaded gasoline,and a rotary lever on the pump was used to select the grade and blend the lowest-octane gasoline with the highest-octane gasoline to obtain the proper octane,with the resulting octane (R+M/2 method)in parentheses(originally, the "missing" grades were available, too - 210, 230, and 250)
190 - Economy (considered 87 today)
200 - Regular (considered 89 today)
220 - Plus (considered 92 today)
240 - Premium (considered 94 today)
260 - Super 260 (considered 96 today,was originally 97.5)
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Statements such as, "I'm thinking about selling this." are considered an offer to sell.
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Joined: Dec 2002
Posts: 759 Likes: 28
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  You can see the 8 position or possible grades on the old blender compared to the 5 grade on the more mordern blender. It is my understanding that the more modern 86 grade was only used in the Sun Mid-America system. Also the 93.5 was only used for short time before the 94 came out. Dave
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Joined: Jun 2012
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That is a great old Sunoco island picture!!
Steve Coppens
Always interested in Sunoco items!
Really want a Sunoco National pump ad glass!!
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Joined: Sep 2008
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Dave , could you fill some of us in on where the more "Modern" Blending pumps are in use ? I'm here in Virginia . Here , Sunoco finially came back after several years of not being in this part of the country. We have the usual three grades here . Ed Shaver
see ya on the road folks !
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Joined: Nov 2000
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Does anyone know what pump company made the one in the second picture?
Jack Sim
Author, 1st & 2nd editions of Gas Pump ID book, 3rd edition is now available at www.gaspumpbible.comAir Meter ID book also available
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Joined: Dec 2002
Posts: 759 Likes: 28
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Ed:
The modern blend pump was from the 1990's and the 5 grades on that pump were used during that time to stations served out of the Toledo (Mid-America) Refinery. I believe everything but the 86 grade was used for the Philly area. I believe the 86 & 94 grades have been dropped system wide since Sunoco sold there refineries.
Jack:
I think the pump was a Wayne or Gilbarco, most likely Gilbarco since the company service tech went to school on them.
Will do a memory check with him.
Dave
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On the modern pump,look at the dual hoses for blending.I would think two hoses would be pretty hard to handle by little old ladies.Wonder why they didn't do it inside the pump like the Wayne 511? Terry
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Joined: May 2005
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I think they made those pumps 2 ways.
One with the actual pump below it inside,another with no pump down below,(remote),but located further away.
This one looks like that.
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