Usually depends on the place around here. Some do, some don’t.
In theory, separate hoses mean low octane and high octane don’t mix (mid grade is already a mix of the two). In practice, it really doesn’t matter. Except for diesel; don’t want to mix that with anything else.
Most modern pumps in the US have one hose and buttons to select the grade. You’ll get a bit of the previous customer’s selection from what was left over in the line, but it’s not a huge difference if you’re getting 10 gallons. It can be a bigger deal for something with a small tank, like a motorcycle.
Diesel still gets its own hose, as putting diesel into a gas car or vice versa can be very bad.
I have selected premium several times and then the tank stopped filling 30¢ early and my receipt said regular despite selecting premium when filling up my moped. I think the machines try to account for the gas type difference sometimes or maybe the pumps I was using were a bit dodgy.
I also remember when gas pumps had a separate hose and nozzle for each grade of gas.
Wonder if they stopped having to do that when they removed lead
Usually depends on the place around here. Some do, some don’t.
In theory, separate hoses mean low octane and high octane don’t mix (mid grade is already a mix of the two). In practice, it really doesn’t matter. Except for diesel; don’t want to mix that with anything else.
You don’t have that? What are you?
Most modern pumps in the US have one hose and buttons to select the grade. You’ll get a bit of the previous customer’s selection from what was left over in the line, but it’s not a huge difference if you’re getting 10 gallons. It can be a bigger deal for something with a small tank, like a motorcycle.
Diesel still gets its own hose, as putting diesel into a gas car or vice versa can be very bad.
I have selected premium several times and then the tank stopped filling 30¢ early and my receipt said regular despite selecting premium when filling up my moped. I think the machines try to account for the gas type difference sometimes or maybe the pumps I was using were a bit dodgy.