Oil change

What is the recommended oil for my Citroen Saxo Diesel 1.5 from 1996?

My car has 230.000 Km. Should I change oil every 10000Km?

Should I also change the filter every time I change the oil?

Your car's manufacturer should be most knowledgeable about the type of oil to use as well as how often it should be changed according to the vehicle use ( i.e. - severe , etc. ) . Check your owners manual ( if you have one ) and go by the recommended service intervals . If you don't have a manual , do a Google search for your particular vehicle's specifications and you should be able to get needed info from that . Just my :2cents: !