Premium Grade
Is there any price difference in Premium gas between Shell & Chevron if the regular gas price is the same?
If the price of regular gas is the same between 2 stations, that that mean that the price of the premium grade gas is the same too? (Price differential in regular and premium)
If different, which brand of premium grade (lets say comparing Octane 92 since some stations dont offer octane 94) is the most expensive?
Would be interested in difference between shell and chevron primarily.
I live in canada.
Here in the US most gas stations are NOT owned by the major gas companies but rather by independent resellers.They set the pump prices themselves and prices can vary from corner to corner depending on whether or not there is a nearby competitor regardless of the brand name on the sign.

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