Its pretty irrelevant to the rest of the world. On most US cars the oil change interval is still 6000 miles since manufacturers only spec a basic mineral oil.
The wifes Kia is service every year or 20,000 miles using full synthetic, same car in the US is service every 6,000 miles using vasic oil.
If US BMW dealers (and independants) have been using a basic mineral oil then failures will have been at epidemic proportions. BMW probably realise its impossible to educate the Americans that high quality oil is needed so have shortened the interval in the hope it makes things better.
|