Clio sport
Please can anyone help me I have a clio sport 2000reg I bought it few months ago the coolant is blacky brown and stinks of fish I rang the garage to see if they will take it out but they said they won't touch it and said nowadays people use a special one that is browny as my car has injection but tbh i think it needs changin my oil looks abit darker aswell what can I do it needs to be all taken out 