Each to their own and manufacturers wouldnt use longlife oils if they thought engine damage would occur, but on the other hand, they only have to warranty and engine and turbo for 3 years, after that they are not bothered and make money from fixing problems!! . So in the warranty period, your car may have only had 1 service.
Its been a while since i bought a brand new car, but if i did, or bought a used one from a dealers, i would ask for it to be put on fixed servicing. I wouldnt leave oil in my car for 20k miles regardless how good it is supposed to be. If it was purley down to having it on variable servicing because i couldnt afford the extra £150 a year for another service, id be asking myself if i could actually afford the car in the first place.
If its on Variable servicing, theres nothing stopping you removing the sump plug, drain the oil and put fresh in with the same filter every 5k miles. Most decent oils can be had for under £30 so why wouldnt you? And if your going to do that, why not bung a new filter in there for the sake of £5.
Its been a while since i bought a brand new car, but if i did, or bought a used one from a dealers, i would ask for it to be put on fixed servicing. I wouldnt leave oil in my car for 20k miles regardless how good it is supposed to be. If it was purley down to having it on variable servicing because i couldnt afford the extra £150 a year for another service, id be asking myself if i could actually afford the car in the first place.
If its on Variable servicing, theres nothing stopping you removing the sump plug, drain the oil and put fresh in with the same filter every 5k miles. Most decent oils can be had for under £30 so why wouldnt you? And if your going to do that, why not bung a new filter in there for the sake of £5.