Over here in France the fishermen have gone on strike. A result, not sure how is that there is a fuel shortage. Guess fishermen are blocking ports or something. Anyway, as most of the 'frenchies' have diesel cars that has been the first shortage. All of our cars run on Unleaded 95 ron. Can, if needed we go onto 98 ron? Our cars are: 1)Volvo 240GL (B200E) with 2 head gasket conversion to run unleaded. 2) Volvo 480ES Turbo Auto (B18FT) 3) My daughters 96' Citroen Saxo 1.0ltr (with cat) Thanks.