How much do you put in when the light comes on? 500ml?I carry 1L of oil in my boot at all times. My car burns through oil slowly over a year, I normally get the light usually after about 8 months after service. I just top it up as necessary until next service.
Luckily there was no immediate damage caused, but still................if you get told to check the oil, probably a great idea to do that right away!