Seems like people in the UK are so obsessed with having a new car that it's
only natural for long oil change intervals to be done, once the car is a few
years old nobody wants it anyway. Still the fact is engines and oil haven't
changed *that* much in the last decade or two, and the cleaner and fresher
your oil is the longer the engine will last. There's a point where you'll
achieve optimum life per dollar spent on oil, but few can agree when that
is.
