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You should do your oil changes when the manual says, but a few hundred miles won't hurt anything.

 

manual says 5K which is for 'driving miss daisy' style.

I say and do 3K for regular oils and 4-5K for synthetic.

 

I believe the 06 manual recommends every 5k. Of couse local conditions can make a difference i.e. high temps, dust, etc.

 

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I run full synthetic and change every 5k,but those are 95% highway miles also.

 

keep it clean. I change mine as soon as I start to see the oil darken @ all.

 

depends, mobile 1 or royal purple you can go 15,000, ford recomends 5000 and only uses the cheap stuff, theres also the synthetic blend which is usually good for about 7500 miles (or atleast mobiles is)

 

Yeah I do mine every 3,000 miles just a old habit... now I am getting ready for the 30,000 mile service here soon after only a 1 1/2 of owning my car. So that tells you how much I drive around.

 

Be careful with the full synthetic oil. In the version of Ford's warranty for CT/NY/NJ/NH/GA, it says that full synthetic oil voids the warranty. I'd check up on that...could be a regional thing, I don't know. Better safe than sorry I suppose......