60% 84 octane gas and 30% 91 octane gas with 10% ethanol makes 89 OR 90% 87 octane gas and 10% ethanol makes 89
60% 91 octane gas and 30% 84 octane gas with 10% ethanol makes 91 OR 35% 91 octane gas and 55% 87 gas with 10% ethanol makes 91
90% 91 octane gas and 10% ethanol makes 93
We were getting 87 and 91 but they are phasing that out and we are getting 84 and 91 as blend stocks now. Use to be there was no 87 at a station that had ethanol. They sold it as 87 but it was really 89 octane. Hence the switch to a 84 blend stock now that most if not all stations have gone to ethanol.
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Today's Featured Article - Women and Tractors - More Views From the Farmer's Wife - by Teri Burkholder. The top ten reasons why the judges wouldn't let you participate in the stock antique tractor pull: Hey, this is stock! It came with that V8 in it! That "R" on my tires stands for "really old" not radial! Blue gas? We thought it was a pretty color! What wire hooked to my throttle?
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