how quickly does oil deteriorate?
Just been thinking recently, i had my car serviced the beginning of march this year and since then it hasnt used more than a mm or 2 of oil on the dipstick? Just before the service it was really drinking the stuff, i was checking it weekly to be sure. Now i dont do more than 6-7000 miles a year and i do alot of cold driving so i know that this is pretty bad for the oil. Does it burn off quicker as it gets older or is it that i was putting a lower quality of oil in it than before (halfords 10 40 semi synthetic), as opposed to, i assume selena
I seem to remember looking back to last year that it was the same, oil usage got heavier as the oil got older.
Anyone else out there noticed the same??