Quote:
Originally Posted by tjts1
How do these myths get started? Over the years I switched 7 cars to synthetic at over 100k miles when we bought them (M102, M103, BMW M42, Volvo B6304, B230f, B5254, B4204t) and none of them developed any problem. I change the oil once a year. Synthetic rotella 5w40 hdeo in everything.
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Lucky you. No need to spend the extra $$$ however. There is no tangible benefit on these cars.
On newer cars, do what the owner's manual says.
rjp