Low quality fuel

My wife always fill at Sasol in Rissiville Vereeniging. She does a lot of driving so it is alway 3 tanks a week she uses of diesel. About a month ago she filled up at this Sasol service station and went to Rustenburg for work. When she switched of her suv, it struggled to start again and ran uneven. After taking it to the agents in Rustenburg (R1500.00 later), nothing was wrong on the suv it self. I drained fuel out of the filter later the same day and noticed the diesel is very dark in color (Strange for a 50ppm). My wife went to the manager of the service station to tell the story. The manager said there was some service stations that had received \bad diesel\" but there diesel was fine, it was tested. The managers attitude stinked and he was short tempered. We just wanted to tell him his product is not on standard. He showed my wife away and said the vehicle had a fault on. A day later the fuel pump was locked up and there was no supply from it. We filled up the suv at Total in Four ways and everything was back to normal. <br> <br> I will not support this service station any more."