Im about to get my first service with 1000miles on the clock. I asked if the oil would be changed and the guy said no, just a basic check up to see that the car is running fine. I asked if i could change the oil as i have heard its a good idea on new engines and he replied saying your cars light will tell u when oil needs to be changed and that after breakin it will change to synthetic oil. I just wanted to get opinions if i should change my oil regardless or listen to the mecanic?