I paid $2.139 for 87 (in the truck) this morning. There was a story on the news that one gas station here in the metro Detroit area was selling for............wait for it............................................
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$1.999
With prices so (relatively) low, my most recent fillup was with 93. The car seems a little nimbler and doesn't seem to need to rev so high to get going, but it's probably not something I'll continue doing.
91 (RECREATIONAL FUEL) is more expensive than 93 because it is ethanol free. 87, 89 & 93 are 10% ethanol. People in Northern New York run ethanol free 91 in their; chainsaws, lawnmowers, snow machines, ATVs, generators, (pretty much anything with a carburetor). Personally I go through about 20 gallons of E-free 91 a year in my small engines.
$47 bucks is not bad considering a little over a month ago, a full tank cost about $70.00 <-------- HOOKER MONEY