Macavely

I go by when my oil starts to change color. so I could be any where from 1K to 8K depending on how hard I drive my car. but with the tC I'm getting around 5k 5.5K

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KingPadmei

Its not like changing your oil is that expensive. YOu have to think of it relativally. Your not going to hurt your car by doing it more often, but you could be just fine doing it less often. Theoretically you could change your oil every 10k miles and it could be ok. It just depends on how much you want to baby your car. I do mine every 3000. As for the difference between 3k and 5k it doesn't matter. Ford has even gone up to 7k I believe, but you know what? Guess what they have changed about your engine between 10 years ago and now? Not much. Power may have changed, but the basics of an engine are fundimentally the same. I say, the sooner the better, but if your strapped for cash or lazy then go ahead and hold off

AKAvensis

regular = 3k
mobil 1= 5k

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InExe

i usually get off my lazy @$$ and change it myself around 3 or so.

Tyydaymon

Funny I live in Florida and the dealer said the same @ 5k it seems all of America is extreme ▄︻̷̿┻̿═━一

TTCCC

Being that the thread is from 07 I think its safe to say he figured it out.

vbtoytech

Manufacturer recommends 5k miles, but has the same engine running 0W-20 at 10k miles. Advise using 5k interval for fossil, 7.5k interval for synthetic.

ironman3452

depends on what kind of oil, how you drive, and where you drive, I change mine when the maintenance light, comes on.
I also tract the mileage, and it is around 5K