I think when this has been asked before it wasn’t worth adding due to there being apps already dedicated to it. They rely on users updating each time they use them or info can be bad. A lot more users on lpg app than here
I will be adding a staff verified LPG database to the app later this year. We will be phoning every station in the UK to verify them before listing them. In the rest of Europe we will be relying on members. The problem with the current apps/websites is that they are not very user friendly.