Originally Posted by
Dave T
By advancing the date, you may see it stuck at 720 days for possibly two years. With some 9-3's, there is nothing you can do to fix the 720 day display except to wait 2 years. The % of oil left will be accurate but if you have low mileage and will change it by the date, you will have to remind yourself some other way.
When the oil life is less than 10%, you will have the option of resetting it. Change the oil and reset it. If you wish to change the oil more often, such as at 50%, you will have to look at the SID and do it when it hits 50%.
The SID will also call for an oil change at every 30,000 miles because that is the interval for other services. So if the SID calls for an oil change at 28,000 miles and you reset it, it will go off again at 30,000 miles. At that time, reset it with or without changing the oil. If you don't change the oil, consider changing it at 50-60% oil left remaining or you will be changing the oil when there is less than 0% life remaining.