"Dave Plowman (News)" wrote in message
...
snip

What I'm saying is that engines last longer and longer despite even longer
oil change intervals. Ie, the makers know what they're talking about.
Both oils and engine manufacturing techniques - and or materials - are
improving all the time, so there really is no need to change oil more
frequently than the maker's recommendation.
snip

You have to remember that makers have extended the service intervals to
appeal to the 'Fleet' / contract hire market, they don't actually care what
the mechanics are like post X [[1] mileage as the car will have gone though
the auction market by then in most cases.

anything from 12k to 50k in most cases