I have an uncle who owns a Shell Gas station in Alpharetta, GA and he tells me that the same tanker that fills his tanks of gas, fills the tank at a competitor 2 miles down the road. I don't know about other states but in Georgia it is common business to communicate with the competitors and have an understanding that for that day the prices will be a certain amount so they don't get into a price war. Atleast that is how he explained it and how he knows that the same tanker fills most other gas stations. The only exception according to him is Exxon Mobil because they have their own fleet of car and are dedicated to only Mobil Stations.
I believe Shell is still a "Top Tier" gasoline, so all grades of Shell gasoline in the US and Canada must contain between 8-10% ethanol.
Nope. Reread the spec very carefully.
Exactly - the "Top Tier" test is testing the additive package, not the total fuel package, so the base gas that the additive pack is added to must contain between 8-10% ethanol since it tends to create more deposits and is more challenging than straight gasoline.
The V POWER here in Niagara Falls Ontario Canada has no ehtanol....
Is this better or worse for cars?
Better, you will get better gas mileage with no ethanol also.
Over the boarder here in New York, you won't find Shell, and you won't find anything without 10 percent ethanol.
Gas in canada costs much more than it does here, and its somewhat expensive here in Western New York (highest in the country, next to Hawaii)