Quote:

Sometimes I think this is just worrying over nothing, though.





Dang Keith, you're pretty smart for a wild dog mf'er.

Keith's calc is appropriately erred to the side of generous fact finding, when indeed, vapor recovery type coaxial gas pump hoses are typically 5/8" ID for the product channel, so, it's even less of a dilution than he indicated.

To further complicate the issue, most modern gas stations have but two tanks - 87 octane, and 93 octane. Mid grade is blended within the gas station's dispenser pumps. For those stations with an actual in-ground mid grade tank, the trucker will blend the 89 octane usually during loading or occasionally at delivery.

I doubt the gas industry is too worried about giving anything away, for all the gas is the same base stock with a little bitta extra octane additive for high test, purchased in mighty, mighty large quantities at a time.

Now with all that in mind, I'm getting a headache.