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"As to whether Porsche or others are more qualified to make recommendations, I will have to take all these recommendations with a grain of salt. As most people do not believe Porsche in their oil change interval, I think the same mentality may be true on soft break-ins."
Porsche engineers ARE qualified. No one in their right mind would question that. What MAY be questioned are Porsche's motives behind certain recommendations. The break-in is a no brainer as Porsche doesn't gain anything by being dishonest about it. The oil change interval, on the other hand, is different as Porsche DOES gain by recommending a longer interval than the one it knows to be better for the engine. Thus, the "optimal" interval for Porsche will always be longer than the one that's optimal for me. For oil intervals, there's no question that shorter is better. So buy insurance and do it more often. You can't go wrong with that.
Z.
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