I will describe just a few of the "facts" discovered over the past week-end relative to "gas sucks". I found it interesting and hope it encourages you to follow up.
A number of years ago the EPA redefined the gasoline market allowing (ie-setting) three different tiers ( tier-1 also called Top Tier, tier=2, and tier-3) for selling gasoline. These tiers are defined by the amount and type of additives blended into gas.
http://www.epa.gov/fedrgstr/EP...2.htm There are also other important rules under this EPA section that should be read.
Four automotive companies;, Honda, GM, Toyota, and BMW pushed the EPA to better define how these tiers should be differeentiated because of the impact to automobiles meeting pollution abatement standards. Here is just one manufacturer's document.
http://www.gmfleet.com/pdf/Tec...e.pdf. Even though it is a couple of years old, it identifies in general and specifically companies selling gas with the highest amount of fuel additives. Short, but interesting.
Finally, the next reference is from Shell Oil Company and describes one set of tests conducted on Dodge trucks. It is
http://www.scottoilinc.com/home/index.php.
This is but a sampling of material available for anyone to read and form an opinion. To some extent my reseach support the view refiners are being greedy and causing our "gas sucks" opinion, but the government helped.
My view.