I noticed recently that Kwik Star has covered up their Top tier Logos on the pumps. Come to find out, the additive that they use is unavailable and it might not be available till the end of the year before they start selling Top tier again. So now I'm in a quandary. The Shell station up the street appears to have Top Tier but it contains up to 10% Ethanol. I'm not a fan of Ethanol, but now I'm thinking Top Tier with Ethanol would be better than gas with no Ethanol that's not Top Tier. Comments? Recommendations??