Warm the engine driving or in the driveway?

[Overdrive]

Originally Posted by BYprodriver

Yes I do have a owners manual & I have read every word in it at least twice.

Sure you didn't miss the part where they say not to exceed 4000rpms, not to apply full throttle, not to apply more than 80% throttle, then? It's definitely there.

I really have no idea where the 2500rpm thing came from. I've heard the 3000 quite a bit, and I trust the experiences of folks in that respect. 2500 to me is too low, and i chastise myself when I catch myself letting the revs drop that low from time to time.

So I follow a combination of owner recommendation and owner's manual recommendation and my range until warming up is from 3000-4000 rpms, plenty to be had in there while being nice to the car, and it warms up within 5-10 minutes.

Originally Posted by BYprodriver

It also says to change oil every 15,000 miles with Mobil 1 0w-40. Ummmm..... I assume you follow this also.

No, but I know people who do and at least one member of this forum who does, and do so because they put enough miles on the vehicle to warrant an oil change at 15,000 miles in less than a year's time. They've had no problems that I've seen, but it's because they're extremely scheduled with their maintenance. So the manual information isn't totally incorrect, it's just not for everyone since a lot of people just don't drive their cars as much as they should. Porsche didn't advise that with the expectation that it'd take some people 15 years to rack up 15,000 miles.