Hi Guys, I had the oil changed to Mobil on Wednesday. I am again asking for advice how ofter should I change oil? I am hearing every 7500 kms. I have also been told that I should change filter @ 5000 and top it up and then change the oil & filter between 10,000 & 15,000. I went on mobil Web site and could not find the answer there (not saying it is not there). Just asking.