Staff Run

I am thinking of stopping doing the staff run. I was given a deal that if I used my own car I would only need to pick up the staff in the hotel along the road from where i stay and take them to the shop then come home. Now I am being told that the manager is moving to a house miles away which means that I will be using a lot more petrol. As I only get paid £5 for the staff run which is for my time and nothing for the petrol then I am wasting money rather than earning it. Also when they are in the car they never talk to me they talk in their own language and I feel that there is too much tension. I dont think it is worth the hassle. On top of all that the summer is coming and I could be going for walks or sitting in the sun rather than taking them all over the place. I will have to consider it closely. It was never a thing than I had to do. It was voluntatary.