Recently, my shopper friend who does the same type of gas stations shops in a nearby state mentioned this question from the editor/reviewer or whatever they are referred. It goes something like this (paraphrasing):
"In reviewing the photo of the diesel pumps, I noticed more diesel pumps than what you have listed. Please review the question and change answer ##. Also, please add comments about this".
My shopper friend (we exchange shop ideas and information as a matter of conversation BTW), said that in the past, in the old days when another company administered the shops they listed the pumps in this manner - if there were 8 gasoline pumps and whether a canopy, separate as a diesel canopy or not, 5 additional diesel pumps as diesel pump 9, 10, 11, 12, and 13.
Those pumps often were numbered by the site as 9, 10 and 11 with the 2 remaining pumps opposite of pumps 9 and 10. Those 2 pumps were controlled by the main pumps 9 or 10 for accepting payment etc. They were satellite pumps, part of either pump 9 or 10 for the large vehicles with diesel tanks on one side or the other (or both). Often they (the satellite pumps) were not even numbered, at other sites, they were, with the same number as their main pump.
When diesel checks came into existence, my friend did these checks, not listing the satellite pumps, only the numbered and operationally accepting a payment.
This was explained to the editor, my friend said in detail.
The final score for the shop was a 2.
Now, after reviewing shopper guidelines, I have not found any information about this. Has anyone? I'm concerned as my next round of shops have a couple of diesel checks.