On Tue, 29 Jul 2008 01:17:12 +0000, Larry wrote:

Vic Smith wrote in
:

Wouldn't be a big trick for the Hess depot to have additive dispensers
for the companies it's serving. Not saying they do. But if I cared
that much about it, I would find out. If not, you're right.

--Vic



There's only one line and they fill all the tanks from the same huge
overhead pipes really fast....as fast as they can. The drivers are paid by
the load...

I asked about this (you got me curious) in the auto tech group and was
pointed to this. As Ripley said, believe it or not:
http://www.t-r-i.com/gifs/xGasoline%20Quality.pdf

Excerpt:
"Gasoline Distribution
The great majority of gasoline today is blended at refineries to
either regular or premium specifications and shipped to distribution
terminals via pipelines or on barges.
From the terminal, it is delivered via tank truck to the service
station. If ethanol is used as the oxygenate, it may be blended at the
terminal truck rack during loading.
If the station uses blending dispensers, only regular and premium
products are delivered; the mid-grade product is blended at the
dispenser.
Older stations, with non-blending three-product dispensers will
have all three products delivered, with mid-grade gasoline blended at
the terminal.
Most gasoline is fungible; a terminal may supply the same base
gasoline to different branded outlets, while differentiating the
performance by blending the specific brand?s detergent additive
package at the truck rack. Terminal rack blending operations have
become quite sophisticated, in providing automated additive injection
and data logging for many different additives."

--Vic