I have an acquaintance who drives a car that specs 87 octane, but for whatever reason this person insists on using 89 octane.
So this person was complaining how his beloved 89 octane now costs $4.739 at the Wawa vs $4.299 for regular. He further lamented the spread in price between 89 and 93 octane was $.16 ($4.899 per gallon), but $.44 between 87 and 89.
I said "put two thirds 87 in your tank and one third 93 and you have 89 octane for a cheaper price." He looked puzzled, but we did the math for 3 gallons. (4.299+4.299+4.899) is $13.49 4.739*3 is $14.21. Under this scenario, he is saving $.72 on 3 gallons or $.24 on one gallon.
He was elated. I'm in NJ and everything is full serve here. He did 2 separate transactions. One for 8 gallons of 87 and a separate transaction for 4 gallons of 93. He said the gas attendant wasn't overly happy. He's now telling everyone the story how he beat the system.
So this person was complaining how his beloved 89 octane now costs $4.739 at the Wawa vs $4.299 for regular. He further lamented the spread in price between 89 and 93 octane was $.16 ($4.899 per gallon), but $.44 between 87 and 89.
I said "put two thirds 87 in your tank and one third 93 and you have 89 octane for a cheaper price." He looked puzzled, but we did the math for 3 gallons. (4.299+4.299+4.899) is $13.49 4.739*3 is $14.21. Under this scenario, he is saving $.72 on 3 gallons or $.24 on one gallon.
He was elated. I'm in NJ and everything is full serve here. He did 2 separate transactions. One for 8 gallons of 87 and a separate transaction for 4 gallons of 93. He said the gas attendant wasn't overly happy. He's now telling everyone the story how he beat the system.