Hi, my z4 is showing up that it needs an oil service in 75 miles. I am away working all week and i plan to get it serviced this weekend. My question is, how long can you go before you are doing damage to the car, i have to do more than 75 miles before i get the car serviced. Is it safe the drive the car after the time is up and if so how many miles will i be able to do before it should really be serviced, thanks in advance

