Originally Posted by
Lucas_R
And Id love to know how long those engines last with such a long oil change interval. No thanks.
I respectfully disagree with you - although we are all entitled to our own opinions. Service intervals designed by manufacturers are not designed with engine longevity in mind. All they want is to get through the warranty period which a new engine would have to be unlucky to not survive with long oil change intervals. Once you are out of warranty, they dont care if you have engine issues. They want you to buy a new car - that's how they make money.
Think of all of the transmissions these days which do not have a service schedule because the manufacturer say its filled for life. Life does not mean 20-30 years, life means about 7-8 years then your transmission shyte itself and instead of spending thousands to fix your broken car, you go and buy a new one. A good example of this is the ZF transmission in my SQ5. Audi say its filled for life....but ZF, who make the transmission say they recommend an oil change between 80,000-100,000km. I know who's advice I will be following because I want to minimise the chance of having my very expensive transmission shyte itself because I didnt do an oil change at the specified interval.
Plenty of videos on Youtube etc showing cars which have not had engine oil changes done for 30,000-40,000km. Its not pretty. Think of all the fine oil lines and oil galleries inside your engine (turbo feed, oil squirters under pistons, variable valve timing systems etc) and how small those feed lines are. They have very little tolerance for dirt/carbon etc due to poor oil changes.
It costs me no more than $100 to do my intermediate oil change and it gives me piece of mind that my engine always has good quality and fresh oil in it.