Johannesburg - Very few petrol stations are not receiving fuel deliveries because of a countrywide strike by workers, the Fuel Retailers' Association (FRA) said on Tuesday."The situation is still alright," chief executive Reggie Sibiya said.He said petrol stations may run dry. The timing would depend on how organised the strike was. Sibiya urged motorists not to panic, but to be prepared for fuel shortages.Engen spokesperson Herb Payne said production at the petroleum company's refinery was carrying on as normal. Engen had experienced no fuel shortages at this stage.BP spokesperson Glenda Zwenyika said contingency plans had been put in place before the strike started, and the company had maximised its fuel delivery to make sure all its petrol stations were topped up.About 70 000 fuel workers from the Chemical, Energy, Paper, Printing, Wood, and Allied Workers Union (Ceppwawu) and the General Industries Workers Union of SA (Giwusa) were demanding a minimum salary of R6 000 per month and a 40-hour work week.Thousands of striking chemical workers gathered in the Johannesburg CBD on Tuesday morning to march for better wages.The unions involved in the Johannesburg march were Ceppwawu, the Allied Workers Union, Giwusa and the SA Chemical Workers Union.Ceppwawu handed over a memorandum of demands to the national bargaining council for the chemical industry.The unions gave employers seven days to respond to their demands. Failure to do so would result in further big industrial action, the striking workers said.