When To Change Oil

[gRed04]

Originally Posted by Brucelee

"Oh, and one more thing regarding the "5 minute" dyno runs. That is the portion of the run after the initial warm up phase that puts the engine through it's paces. On a modern computer controlled engine dyno you can properly break in an engine in a matter of minutes. Again, more is not always better."

I would love to see some back up for this statement. Break in has to do with bearings, metal to metal, and ring seating. How does the computer speed up that process?

I do think the "bashing" you refer to is valid. If Porsche specifies 20K on the oil, it would have more credibility if it had many less failures to explain.

PS- I love Porsche but am not blind to their blindness on certain issues.

I think they mean a engine, out of the car, being dyno'd with a computer.

I have heard previously that the majority of any ill-fitting metal parts can be seated in a manner of mintues on a new engine. Not sure about 5 minutes but I read somewhere it happens pretty quick.