If most of the gas stations have it, how is it not readily available?
I don’t consider learning which local station lack a diesel pump the same as not available. And I have commonly found that a station that sells diesel, has a big sign out front with a diesel price. It just is not that hard to find. Learning to look for the different colored handle is not that hard.
Because it’s not at ALL the gas stations. And even at the stations that have it it’s not at ALL the pumps.
You might not consider it not readily available, but it is. If you have a gas car you can pull in front of any pump at any station in Tucson (and other chunks of the southwest I find myself in) and be able to fill your car. Ready availability. If you have a diesel car you have to make sure the station has it AND then pull in front of the right pump, which will be in the distinct minority and could be occupied by people getting gas. Not readily available.
I didn’t say it was that hard to find. I said it was not readily available. Simple English sentence, and also true. As soon as you have to start aiming for the right pumps at the right stations ready availability is lost, now you’re at limited availability. Which isn’t horrible, but is distinctly different, and a reason for some people who don’t want to put that much effort into filling the tank to stick with gas.