At What Oil Life Percentage Should You Change Your Oil. At zero%, you are supposed to get the required service performed immediately. I wouldn’t go past 20% oil life remaining.
But those intervals aren’t the best means to determine if a truck or suv truly needs an oil change. So what’s the best way to determine your oil life percentage and find out when to change your oil? Make sure the monitor is reset every time the oil is changed and i would change it between 40 and 20 percent.
If you change your own oil, you can reset the system by following the instructions in the vehicle owner's manual. Oil pressure indicator is different than oil life percentage. Therefore, it is vital for you to note that the percentage. The oil life indicators on modern cars are pretty darn good at figuring out when the oil needs to be changed.