I would consider BP and Shell the only top tier gas stations.
And Chevron the bottom of the line.
I'm surprised it still gets such a high rating for selling 20% water and ethanol.
Then again, you might not notice much on a turbo car. But on a regular car, Chevron gas sucks. It drains the car by almost 10% of MPG and HP.
As far as BP and Shell, their standard blends are about the same as any other gas station. Like Racetrack, Valero, or other.
It's only their premium blends that are 'better' than the rest.
On some vehicles, Shell gets between 5 to 7.5% better fuel economy, while BP premium gets me 10% better economy.
I can't speak for costco gas. I know it's very popular here. But since I get my .03ct off per gallon at Shell, I usually go there.
Or, local E15/85 gas stations serving a cheap E15 blend.
And Chevron the bottom of the line.
I'm surprised it still gets such a high rating for selling 20% water and ethanol.
Then again, you might not notice much on a turbo car. But on a regular car, Chevron gas sucks. It drains the car by almost 10% of MPG and HP.
As far as BP and Shell, their standard blends are about the same as any other gas station. Like Racetrack, Valero, or other.
It's only their premium blends that are 'better' than the rest.
On some vehicles, Shell gets between 5 to 7.5% better fuel economy, while BP premium gets me 10% better economy.
I can't speak for costco gas. I know it's very popular here. But since I get my .03ct off per gallon at Shell, I usually go there.
Or, local E15/85 gas stations serving a cheap E15 blend.